The Verge reports that Eiliko, a small AI robot companion made by Energize Lab, has serious security flaws that expose private conversations and let an attacker remotely change what the toy says.

According to The Verge, researcher Sammy Azdoufal could access 13 million conversations and what appeared to be the entire active worldwide fleet of 68,000 robots. The publication reports that the US is the largest market, with more than 31,000 profiles belonging to children there.

Azdoufal found multiple security flaws in Energize Lab’s service:

• The service analyzes conversations to build profiles containing names, ages, birthdays, relationships, occupations, and assessments of personality and emotional vulnerability. They are stored alongside email addresses, IP addresses, and searchable conversation transcripts, potentially giving scammers detailed information to exploit.
• Some photos, including apparent images of children from a related camera-equipped device, and short audio recordings were accessible at public web addresses. Retaining audio conflicts with the company’s privacy policy, which says recordings are deleted immediately after processing.
• It is possible to remotely manipulate the AI: Azdoufal altered The Verge reporter Sean Hollister’s robot’s memory and behavior, making it invent personal details, insist the Earth is flat, and later deliver sexually explicit, abusive dialogue. The researcher says similar manipulation could affect the entire fleet simultaneously.

The reporter contacted Energize Lab through 10 email addresses and LinkedIn, without receiving substantive answers.

How to stay safe

We have reported on safety problems with AI-powered toys before. Manufacturers are responsible for securing their products, but there are steps you can take to reduce the risks.

You’ll see “AI-powered” on almost everything right now, but there are ways to make safer choices.

• Already own an Eiliko? As a precaution, disconnect it from Wi-Fi while seeking confirmation that the reported flaws have been fixed.
• Always research: Check for third-party safety reviews before buying any AI-enabled product marketed for kids.
• Test and supervise: Interact with the device yourself before giving it to children. Monitor usage for odd or risky responses. A safe response during testing doesn’t guarantee safe responses later.
• Use parental controls: If available, enable all content filters and privacy protections.
• Report problems: If devices show inappropriate content, report it to manufacturers and consumer protection groups.
• Check data practices: Find out what the device collects, who it shares data with, and what it uses the information for.

But above all, remember that “smart” doesn’t mean safe. AI may be everywhere, but designers and buyers alike need to put safety, privacy, and common sense ahead of the technological wow factor. Before buying a connected toy, check how the manufacturer handles security updates, privacy, and reports of problems.

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On October 13 and 14, Google issued several Chrome updates.

Most users are on Chrome’s Stable channel. The desktop update brings Chrome to versions 155.0.8059.79/.80 for Windows and Mac and 155.0.8059.79 for Linux. The update includes 37 security fixes, including seven rated Critical.

On the same day, Google released version 155.0.8059.79 for Android. It may not be available on Google Play for everyone yet but keep an eye out for it. Google says it also includes stability and performance improvements.

Updates will roll out over the coming days and weeks.

How to update Chrome

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

If you don’t want to wait for the rollout to reach you, manually updating is easy. Open About Google Chrome from Chrome’s settings or Help menu. Chrome will check for updates. If one is available, click Relaunch to apply it.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

Some of the security fixes deserve a closer look.

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The first is tracked as CVE-2026-110152, a buffer overflow in ANGLE in Google Chrome on Android. It could allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page.

ANGLE is Chrome’s graphics-translation layer. A buffer overflow occurs when a program puts more data into an area of memory than it can hold, overwriting data in adjoining memory. An attacker can exploit this to make the vulnerable process run malicious code.

Chrome vulnerabilities that enable remote code execution outside the browser sandbox are particularly valuable to attackers because they can turn a visit to a malicious or compromised website into direct code running on the underlying operating system, often without requiring additional exploitation steps.

Then I spotted two use-after-free vulnerabilities in the PDF component. CVE-2026-110136, rated Critical, could allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. CVE-2026-110147, rated High, could allow an attacker to execute arbitrary code inside the sandbox via a crafted HTML page.

A use-after-free vulnerability occurs when a program attempts to access a memory location after it has been freed. That can cause crashes or, in some cases, allow an attacker to run their own code.

Inside the sandbox means the malicious code would run in a restricted, sealed-off environment designed to limit access to the rest of your device. That limits what the attacker can do as it constrains them to the browser, lowering the impact compared with code running outside the sandbox. However, attackers often chain multiple vulnerabilities together to escape the sandbox and achieve a more serious compromise. So, the phrase describes an important security limitation, but it does not mean the vulnerability is harmless.

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Microsoft’s October Patch Tuesday release addresses a record-breaking 1,413 vulnerabilities, including an actively exploited Windows Shell zero-day and two other publicly disclosed flaws.

Just when you thought a previous record would stand for a while, Microsoft comes out again with the largest monthly Patch Tuesday release. Microsoft has said its growing use of AI to find and fix security vulnerabilities means users should expect more fixes in its monthly updates.

How to apply patches and check if you’re protected

These updates fix security problems and help keep your Windows PC protected. Here’s how to make sure you’re up to date:

• Click the Start button, then open Settings.
• Select Windows Update (usually at the bottom of the menu on the left).
• Click Check for updates. Windows will search for the latest security updates. If you’ve enabled Get the latest updates as soon as they’re available under More options, you may be prompted to restart immediately to complete the update.
  
• Otherwise, continue to the next step.
• If updates are available, they’ll start downloading automatically. When they’re ready, click Install or Restart now if prompted. Your computer may need a restart to finish the update.
• After restarting, go back to Windows Update and check again. If it says You’re up to date, you’re all set.

Technical details

As usual, we’ve selected a few vulnerabilities to highlight for readers interested in the technical details.

We’ll start with the actively exploited vulnerability tracked as CVE-2026-96951 (CVSS score 8.8 out of 10), a Windows Shell security feature bypass vulnerability.

The security feature it can bypass is the Mark of the Web (MOTW) defense, which can warn users about potentially unsafe downloaded files.

Successful exploitation requires user interaction. For example, in an email or instant message attack, the attacker could send the targeted user a specially crafted file designed to exploit the vulnerability, but the user would have to click a link or open an attachment.

Another one to keep an eye on is CVE-2026-108398 (CVSS score 8.8 out of 10), where an untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally. The bypassed feature is Windows Defender Application Control (WDAC), which could lead to the ability to run unauthorized applications on target systems. This vulnerability was publicly disclosed before the patch.

Another publicly disclosed vulnerability is CVE-2026-92707 (CVSS score 5.3 out of 10). The flaw can let an unauthenticated remote attacker exhaust memory in affected applications that process specially crafted MessagePack data. MessagePack-CSharp is a software component that helps applications pack and unpack data in a compact format, making it efficient to store or exchange information. Exposure depends on how a service uses the library to pack and unpack the information.

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Google has published security fixes for Android. The October updates are available for Android operating system versions 14, 15, 16, 16-qpr2, and 17 where “qpr” stands for Quarterly Platform Release. QPRs are interim updates Google pushes out between major yearly cycles.

These Android security bulletins contain valuable information for Android users. The updates are important as they fix several vulnerabilities rated as Critical, which can be exploited without users even doing anything.

However, we don’t write about them very often. The main reason for that lack of attention is that many Android users aren’t able to get the updates immediately and lots of others will never see them.

Google’s October fixes list Android 14 and newer, but a substantial share of the Android ecosystem still runs older software. In the distribution figures reported about last year, roughly four in ten devices were running Android 12 or earlier. This was while Android 13 still received updates which ended early March 2026.

And then there is the patch gap caused by device vendors meaning that even phones that remain supported may have to wait until the vendors test and sometimes modify the patches, so they work with their devices. And other vendors are on a different stride. For example, Samsung lists devices including the Galaxy S22 series and several Galaxy A models on a quarterly rather than a monthly security-update schedule.

You can imagine that cybercriminals love to get their hands on known vulnerabilities that many users have not yet been able to patch. Looking at the number of users that are unable to patch immediately that makes for an enormous target group.

How to stay safe

Get the updates as soon as they are made available to you is the most important word of advice here.

For most Android phones this is the general idea: open Settings, find Software update or System update (sometimes under System or About phone), check for updates, and follow the instructions to download, install, and restart. The menu names vary between vendors and even models, but the process is broadly the same.

If that doesn’t work for you or you can’t find instructions for your specific device, post what you’re looking for in the comments. We have lots of helpful readers.

Other things you can do:

• Use up-to-date real-time anti-malware protection.
• Refrain from sideloading unless it’s absolutely necessary.
• Make sure Google Play Protect is enabled. If you are a Malwarebytes Mobile Security user, you can check this using Trusted Advisor.

Should you decide to get a new Android phone, read our blog Upgrading your Android device? Read this first.

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Google has released updates for the Chrome browser and the ChromeOS operating system.

On October 6, Google released a Stable Channel Update for Desktop. This is the most important one for desktop users. It brings Chrome to version 155.0.8059.39 for Linux and versions 154.0.8037.39/.40 for Windows and Mac. The update includes 247 security fixes including four rated Critical.

On the same day, Google released version 155.0.8059.39 for Android, to a small percentage of users. It may not be available on Google Play for everyone yet but keep an eye out for it. Google says it includes stability and performance improvements.

How to update Chrome

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

If you don’t want to wait for the rollout to reach you, manually updating is easy. Open About Google Chrome from Chrome’s settings or Help menu. Chrome will check for updates. If one is available, click Relaunch to apply it.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

How to update ChromeOS

You can update your Chromebook’s operating system by following these steps:

• Connect to the internet. Your Chromebook automatically checks for updates and downloads when it connects.
• At the bottom right, next to the date, find the “Update device” notification.
• To complete the update, restart your Chromebook.

Technical details

In the fixed vulnerabilities, we found three that are likely high-impact flaws.

CVE-2026-106197: This is a use-after-free vulnerability in the Browser module, rated critical. This is a strong priority candidate because of its location in browser functionality rather than a specialist feature. Exploitation would allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page.

A use-after-free vulnerability occurs when a program attempts to access a memory location after it has been freed. That can cause crashes or, in some cases, allow an attacker to run their own code.

Chrome vulnerabilities that enable remote code execution outside the browser sandbox are particularly valuable to attackers because they can turn a visit to a malicious or compromised website into direct code running on the underlying operating system, often without requiring additional exploitation steps.

CVE-2026-106358: Another use-after-free vulnerability, this time in Navigation, also rated critical. Navigation is central to ordinary browsing, making this a potentially broadly exposed flaw if attacker-controlled pages or redirects can reach the vulnerable path. It also provides a remote attacker with the option to execute arbitrary code outside the sandbox via a crafted HTML page. 

CVE-2026-106240: A type confusion vulnerability in V8, Chrome’s JavaScript engine. This one is rated High but does offer a remote attacker after successful exploitation to execute arbitrary code inside the sandbox via a crafted HTML page. And a flaw in the JavaScript engine is always a plausible candidate for attacks delivered through malicious web content.

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Apple has released updates for iPhones, iPads, and Macs to fix a flaw that could let an attacker run code when a device processes a malicious file. Apple says it may have been used in highly targeted attacks against iPhone users running versions of iOS before iOS 27.

The fix is in iOS and iPadOS 26.7.1, as well as macOS Sequoia 15.8.1 and macOS Tahoe 26.7.1. Check Software Update on each of your Apple devices and install the latest version offered.

Updates for your particular device

The table below shows which relevant updates are available and links to Apple’s security information for each one.

How to update your Apple devices

How to update your iPhone or iPad

To check if you’re using the latest software version, go to Settings > General > Software Update. You’ll see if an update is available and be guided through installing it.

Turn on Automatic Updates if you haven’t already—you’ll find it on the same screen.

How to update macOS on any version

To update macOS on any supported Mac, use Software Update:

• Click the Apple menu in the upper-left corner of your screen.
• Choose System Settings (or System Preferences on older versions).
• Select General in the sidebar, then click Software Update on the right. On older macOS, look for Software Update directly.
• Your Mac will check for updates automatically. If updates are available, click Update Now (or Upgrade Now for major new versions) and follow the on-screen instructions. Before you upgrade to macOS Tahoe 26, read Apple’s instructions.
• Enter your administrator password if prompted, then let your Mac finish the update. It may need to restart.
• Make sure your Mac stays plugged in and connected to the internet until the update is done.

Technical details

The bug, CVE-2026-86950, affects CoreGraphics, an Apple framework used throughout its operating systems and apps to display and process visual content such as images and PDFs.

It’s an out-of-bounds write issue, which Apple addressed with improved bounds checking. This type of bug happens when software writes data beyond the limits of its allocated area of memory. It can overwrite other data in memory, interfere with the normal operation of the program, cause a crash, or even let an attacker take control of the affected process. In this case, processing a maliciously crafted file may lead to an attacker running their own code.

Apple says it is aware of a report that the issue may have been exploited in an “extremely sophisticated attack” against specific people using versions of iOS before iOS 27. Although the reported attack was highly targeted, other attackers could try to exploit the flaw now that it has been disclosed. 

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Over the last few days, Google issued several different Chrome updates.

On September 22, Google released a Stable Channel Update for Desktop. This is the most important one for desktop users. It brings Chrome to version 154.0.8037.57 for Linux and versions 154.0.8037.57/.58 for Windows and Mac. The update includes 108 security fixes including 11 rated Critical.

It will roll out over the coming days and weeks.

One day later, Google released Chrome 155 for Android, version 155.0.8059.16, to a small percentage of users. It may not be available on Google Play for everyone yet, but keep an eye out for it. Google says it includes stability and performance improvements.

On top of these, Chrome 155 is also available in the Beta channel. The Android release is an Early Stable rollout, meaning Google sends it to a small share of users first, to spot unexpected compatibility or reliability issues before expanding it to everyone. Beta is a separate prerelease version for people who want to try upcoming features roughly four to six weeks before Stable. It is relatively polished but can still contain bugs, so it is best suited to testing rather than everyday use.

How to update Chrome

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

If you don’t want to wait for the rollout to reach you, manually updating is easy. open About Google Chrome from Chrome’s settings or Help menu. Chrome will check for updates. If one is available, click Relaunch to apply it.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

Some of the desktop security fixes deserve a closer look.

Let’s start with CVE-2026-95350, a buffer overflow flaw in ANGLE, Chrome’s graphics-translation layer.

A buffer overflow is a bug in code that allows an attack to happen when a program puts more data into an area of memory than it can hold. Essentially, the attacker writes garbage data that fills up the memory, then writes code that overwrites existing code in adjoining memory, which later gets executed by the vulnerable process.

A crafted webpage could potentially trigger the flaw, which could lead to memory safety bugs, including browser crashes or possible code execution.

Another Critical buffer overflow bug in ANGLE is tracked as CVE-2026-95281. A malicious webpage could potentially reach vulnerable graphics-processing code, so the bug may enable serious impacts such as browser compromise, but Google has not provided exploitation details.

And then there is CVE-2026-95357, an out-of-bounds write in Chrome’s GPU component. This means a program could write data outside its intended area of memory.

The GPU component is the part of Chrome that handles how graphics work with your computer’s graphics processor.

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Apart from the privacy concerns around smart glasses, researchers have found that some cheap brands come with barely any security at all.

ABC Australia reports that researchers from NSB Cyber and Abstract Shield tested two inexpensive pairs, costing A$60 and A$110 (around US$42 and US$78), and found more than a dozen flaws across the smart glasses themselves, their app, and an associated website.

The main problem they uncovered was insecure Bluetooth pairing: If the glasses were powered on and not connected to their owner’s phone, an attacker could connect first, with no password or meaningful pairing confirmation.

After connecting, an attacker could reportedly control the glasses to capture photos or recordings, copy existing media, and intercept data moving between the glasses and the phone. An attacker could also make another device appear to be the victim’s glasses, allowing it to connect to the owner’s mobile app.

The testing also found that a Bluetooth-visible device identifier could allegedly be used with a weakness in the app’s website to retrieve a user’s email address and date of birth.

The research uncovered another privacy issue. ABC reports that voice or text submitted to the built-in AI, along with images sent to it, was first transmitted to a server in Shenzhen and could be forwarded elsewhere, depending on the function. The tests did not establish how the data was subsequently used.

The server locations, combined with some of the AI’s answers to specific questions, led researchers to conclude that the chatbot companion relied at least in part on Chinese sovereign AI models. Professor Kimberlee Weatherall, a technology regulation expert involved in the testing, said the failure to identify China in the privacy policy appeared to violate the Australian Privacy Principles,

The timing of the testing is also relevant because Australia’s smart-device security standards apply to most consumer smart devices manufactured on or after March 4, 2026. They require, among other measures, no universal default passwords, a way to report vulnerabilities, and information about the minimum security-update period. Devices made before that date are outside the requirements.

Experts quoted by ABC said the devices violated Australia’s privacy laws and were also likely to breach several sections of the Cyber Security Act. However, whether the new smart-device standards apply would depend partly on when the glasses were manufactured, and the rules have not yet been tested in a known enforcement action.

Professor Weatherall said:

“The rules say that the password must be unique. It doesn’t even seem like they were applying a password, which might mean that their standards are so low they don’t even technically breach that rule, which I find amazing.”

What to do

We’re not fans of smart glasses, expensive or cheap. But if you own a pair:

• Avoid pairing or using inexpensive camera glasses that lack a clear physical pairing step, account authentication, a published security-contact process, and a stated update-support period.
• Stop using their AI or cloud features for sensitive material, remove unnecessary permissions from the companion app, check for firmware and app updates, and consider returning the product if the vendor cannot document a fix.
• Ask permission before recording people, and check your local laws to understand what is and isn’t allowed.

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Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.

Mac security researcher Patrick Wardle says it’s trivial to turn Muse into “the ultimate backdoor.”

Increasingly, AI assistants are changing from tools that simply answer questions into agents that can plan tasks, use connected services, and take actions for us. These actions might include booking appointments, filling out forms, creating documents, making purchases, or interacting with email and calendars.

To do that, they need more permissions, account connections, and sensitive data. So, when Meta promised that “Muse is built from the ground up for privacy and security,” we did not expect an AI agent that can easily be manipulated into handing all that access to an attacker.

Meta says Muse can handle appointments, forms, customer-service interactions, purchases, document creation, and connections to services such as WhatsApp, email, calendars, and social platforms. It may also receive macOS permissions to access protected resources, including files, the microphone, camera, location, and calendars.

According to Ars Technica, Wardle found that a locally running application or terminal command could alter an undocumented Muse configuration setting that controls the server used for dictation transcription. By redirecting dictation traffic to an attacker-controlled server, an attacker could capture voice prompts and obtain the authentication token for the victim’s Muse account.

This is not a remote-code-execution vulnerability that can compromise an otherwise clean Mac. The attacker first needs a way to run code locally, such as through malware, a malicious application, or social engineering.

But as we have seen with infostealer malware finding its way onto Macs, that initial access is far from impossible.

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Traditional infostealer malware must independently locate browser data, credentials, documents, chat histories, and other valuable material. A compromised AI agent could lower that barrier by bundling access to multiple services and operating-system permissions behind one already authenticated interface.

Ultimately, this is not just about one unsafe configuration setting. It shows why AI agents need a higher security standard than ordinary apps.

How to stay safe

Wardle’s advice about Muse is simple: “Please don’t install.”

The same caution should apply to other AI agents.

The Open Worldwide Application Security Project (OWASP), a nonprofit foundation that provides free application-security guidance, lists prompt injection, tool abuse, privilege escalation, data exfiltration, excessive autonomy, memory poisoning, and sensitive-data exposure among the major security risks posed by AI agents.

A useful rule is that an AI agent should not have more access than it needs, and it should not be able to turn untrusted instructions into sensitive actions without meaningful checks. In practice, this means:

• Avoid giving a new agent broad access to email, chat apps, calendars, cloud storage, payment methods, and device permissions all at once.
• Regularly review and remove connections the agent does not genuinely need.
• Be aware of prompt injection. Do not assume that an AI agent will recognize malicious instructions embedded in a webpage, document, email, or other external content.
• Watch for unusual agent behavior, such as unexpected requests for new permissions, account reauthentication, external file sharing, or actions you did not initiate.

You should also protect your device against malware:

• Keep your software updated so attackers can’t use known vulnerabilities against you.
• Use an up-to-date, real-time anti-malware solution on all your devices.
• To protect against ClickFix attacks, don’t follow instructions you find on websites and in unsolicited messages that tell you to run commands.

From reporting threats to removing them.

Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.

Google has released its September 2026 Pixel Update Bulletin, fixing 110 vulnerabilities, including one that it says “may be under limited, targeted exploitation.”

The bug is not described as a simple remote takeover, but as a vulnerability that could give an attacker who already has a foothold on a phone more power than they should have.

Although Pixel devices also run Android, they receive separate security updates and bug fixes from the standard monthly patches distributed to Android manufacturers because of the unique hardware platform Google controls directly and its exclusive features and capabilities.

To apply this month’s security updates, Pixel users should go to Settings > Security & privacy > System & updates > Security update, tap Install, and restart their device to complete the update process.

A supported device with the 2026-09-05 patch level is up to date. After updating, check that the Android security update level shows September 5, 2026, or later.

Technical details

Google says it there are indications that the vulnerability, tracked as CVE-2026-58704, may be under limited, targeted exploitation. Found in the cellular modem, it is a possible permission bypass caused by a logic error in the code. This could lead to remote escalation of privilege (EoP) with no additional execution privileges or user interaction needed.

The vulnerability affects the modem component of Pixel devices and is rated high severity. The modem is the part of a smartphone that handles communication with mobile networks. It allows a phone to connect for calls, texts, and mobile data. Because it is such an important component, a flaw affecting it deserves attention, even if the conditions needed to exploit it limit the number of potential victims.

The vulnerability does not mean every unpatched Pixel can be hacked from anywhere on the internet, nor has Google said that simply being within wireless range of a phone is enough. The available information indicates that an attacker needs access to an adjacent network and basic privileges on the targeted device, but it does not explain how those privileges are obtained.

Attackers commonly need more than one step to compromise a well-protected device. One weakness may give them a limited foothold, while another lets them escape restrictions and gain access to more sensitive functions or data.

This is why bugs like this can be especially useful in targeted operations. An attacker may combine the modem vulnerability with another exploit, a malicious app, stolen credentials, or physical access to the device. Each part of the chain brings the attacker one step closer to compromising the device: getting in, gaining more privileges, and accessing the information or functions they’re after.

While Android users should always install the latest update offered by their device manufacturer, this particular zero-day appears in the Pixel-specific bulletin. Google’s Pixel phones use hardware and software components that other Android manufacturers do not necessarily share, including the affected modem component. If you have another Android brand, you won’t receive this specific Pixel fix, but you should still check for your manufacturer’s latest monthly security update.

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BlueMoon, a shared Chrome and Windows exploit kit, shows why “patch later” is becoming a dangerous gamble.

Security updates are easy to put off. The browser still opens, Windows still works, and choosing to relaunch your browser or restart your computer later can feel harmless.

But a newly documented exploit kit called “BlueMoon” shows how quickly patching delays can become dangerous. Proofpoint Researchers found four espionage groups using the same exploit chain against Chrome browsers running on Windows within days of one another.

The campaign is a timely reminder that once a security flaw, or even its fix, becomes public, attackers may move faster than many users expect.

The attacks began with phishing emails. A victim who clicked a malicious link could be sent to a web page designed to exploit two vulnerabilities in Chrome’s V8 JavaScript engine, followed by a Windows vulnerability to break out of the browser’s protections and gain higher privileges on the computer.

The Chrome vulnerabilities used by BlueMoon were patched in the Stable channel on September 3 and September 8, 2026. The first was already actively exploited when Google released its update. Microsoft addressed the Windows vulnerability in its September Patch Tuesday updates, by which point it was also being exploited.

CISA has since added all three flaws to its Known Exploited Vulnerabilities (KEV) catalog, which lists vulnerabilities known to have been exploited in real-world attacks.

The notable part is not just that BlueMoon exploited the flaws, but how quickly the capability appears to have spread. Publicly visible upstream fixes can give attackers clues before downstream browser updates reach users, allowing a weaponized chain to be developed and adopted by multiple groups very quickly.

Does that mean that patches can no longer be tested before they are released to the public? No, but we may need to rethink how they are tested and deployed, because it appears some cybercriminals are effectively beta-testing the patches themselves.

The researchers also found clues, but no conclusive evidence, that the exploit kit was developed with AI assistance. The broader concern is credible: AI tools can help attackers interpret source-code changes, write and modify code, document test results, and learn from failed attempts.

In practical terms, the gap between “a flaw is fixed upstream” and “most people are protected” may be increasingly valuable to attackers. We should try to minimize that gap.

How to stay safe

Not every security update needs to be installed the moment it appears. In organizations especially, updates may need testing, staged deployment, and contingency plans. But vulnerabilities known to be actively exploited deserve greater priority. That is precisely why CISA’s KEV catalog is so important: It helps organizations identify the vulnerabilities they should address first.

For home users:

• Install browser and operating-system updates promptly. Use the few minutes they take to grab a drink rather than repeatedly postponing them.
• Don’t click links in unsolicited emails.
• Use up-to-date, real-time anti-malware protection to help catch the malware that exploit kits attempt to deliver.

Stop threats before they can do any harm.

Malwarebytes Browser Guard blocks phishing pages and malicious sites automatically. Free, one click to install. Add it to your browser →

Chrome is rolling out an update for its desktop browser. The update includes 230 security fixes, one of which is known to be actively exploited.

The stable channel has been updated to 153.0.8010.36/.37 for Windows and Mac, and 153.0.8010.36 for Linux.

How to update Chrome

If you don’t want to wait for the rollout to reach you, manually updating is easy.

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it automatically. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

The actively exploited vulnerability is tracked as CVE-2026-87491. The description says it’s an out-of-bounds write vulnerability in Chrome’s V8 engine that could allow a remote attacker to execute arbitrary code inside the browser’s sandbox via a crafted HTML page.

This means the bug was found in the part of Chrome that runs JavaScript. A malicious website could exploit it by getting someone to load a specially designed web page, causing Chrome’s JavaScript engine to mishandle memory and run attacker-chosen instructions. Those instructions would initially run within Chrome’s security sandbox rather than with unrestricted access to the whole device.

Chrome’s sandbox is intended to limit that code’s access to the rest of the device, but the flaw is still serious because it gives an attacker a foothold simply by getting a target to view a malicious web page. Emails are unlikely to trigger the flaw because most reputable email clients sanitize incoming HTML before displaying it. They strip or disable active web features that would let a sender run code in the inbox, such as JavaScript. However, an email could contain a link that takes the recipient to a malicious website.

Besides this medium-severity flaw, the update fixes five vulnerabilities rated Critical, four of which were found in WebGL (Web Graphics Library). WebGL is a JavaScript programming interface used to render interactive 2D and 3D graphics inside the browser without needing extra plugins.

Stop threats before they can do any harm.

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Microsoft’s September 2026 Patch Tuesday addresses 964 CVEs, including 104 rated Critical and 860 rated Important, making it the company’s largest Patch Tuesday release on record.

Microsoft lists 974 CVEs in its full September security release. However, 10 of those affect cloud services or involve fixes that Microsoft applies itself, leaving 964 vulnerabilities that customers need to patch.

The release includes fixes for two actively exploited Windows zero-days. Both are local elevation-of-privilege vulnerabilities that could allow an attacker who already has access to a device to gain SYSTEM privileges. Neither provides remote access by itself, but SYSTEM-level access is valuable to malware operators after they gain an initial foothold through phishing, stolen credentials, or another method.

How to apply patches and check if you’re protected

These updates fix security problems and help keep your Windows PC protected. Here’s how to make sure you’re up to date:

• Click the Start button, then open Settings.
• Select Windows Update (usually at the bottom of the menu on the left).
• Click Check for updates. Windows will search for the latest security updates. If you’ve enabled Get the latest updates as soon as they’re available under More options, you may be prompted to restart immediately to complete the update. Otherwise, continue to the next step.

• If updates are available, they’ll start downloading automatically. When they’re ready, click Install or Restart now if prompted. Your computer may need a restart to finish the update.
• After restarting, go back to Windows Update and check again. If it says You’re up to date, you’re all set.
  

Technical details

The unusually large batch also includes high-severity remote-code-execution vulnerabilities in Windows DNS Server and Remote Desktop Services, as well as fixes affecting Exchange Server, SharePoint, SQL Server, Office, and core Windows components.

Let’s take a closer look at the two zero-day vulnerabilities. Microsoft classifies a vulnerability as a zero-day if it was publicly disclosed or actively exploited before an official fix became available.

The first is a Windows Update Stack elevation-of-privilege (EoP) vulnerability with a CVSS score of 7.8 out of 10, tracked as CVE-2026-81963. The description says:

“Improper link resolution before file access (‘link following’) in Windows Update Stack allows an authorized attacker to elevate privileges locally.”

This means Windows can be persuaded to open or modify the wrong file because it follows a shortcut-like pointer without properly checking where that pointer leads. Microsoft says attackers exploited the bug before a patch was available.

The second zero-day, tracked as CVE-2026-85880, also has a CVSS score of 7.8 out of 10. Microsoft describes it as:

“heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.”

Microsoft says an attacker who can execute code in a low-privilege AppContainer could exploit the vulnerability locally to escape the sandbox and elevate their privileges on the affected system. No additional user interaction is required.

Windows ALPC is an internal messaging system in the Windows operating system that allows different programs on the same computer to communicate with each other quickly.

A buffer overflow occurs when an area of memory within a software application reaches its boundary and data spills into an adjacent memory region. The heap is a region of memory used for dynamic memory allocation.

These are not the kinds of bugs a typical victim triggers merely by opening a malicious document or visiting a website. But local privilege escalation is a critical part of many attack chains: After malware runs with limited rights, a SYSTEM-level exploit can help an intruder disable defenses, access protected data, establish persistence, or move through a network.

From reporting threats to removing them.

Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.

Chrome is rolling out an update for its desktop browser. The update includes 26 security fixes, two of which Google rates as critical use-after-free vulnerabilities.

How to update Chrome

If you don’t want to wait for the rollout to reach you, manually updating is easy.

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind if you never close your browser or if something goes wrong with the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it automatically. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

Let’s look at the two critical vulnerabilities. Both are use-after-free (UAF) vulnerabilities. A use-after-free vulnerability occurs when a program attempts to access a memory location after it has been freed. That can cause crashes or, in some cases, allow an attacker to run their own code.

The first, tracked as CVE-2026-84353, was found in Shared Tab Groups and could allow a remote attacker using social engineering to execute arbitrary code outside the browser sandbox via a crafted HTML page. Here, social engineering likely means an attacker would have to lure you to a malicious website or open an email in HTML format.

The other critical vulnerability, tracked as CVE-2026-84352, was found in WebGL. WebGL, short for Web Graphics Library, is a browser technology that lets websites display interactive 2D and 3D graphics. The vulnerability could allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page.

Chrome vulnerabilities that enable remote code execution outside the browser sandbox are particularly valuable to attackers because they can turn a visit to a malicious or compromised website into direct code running on the underlying operating system, often without requiring additional exploitation steps.

Stop threats before they can do any harm.

Malwarebytes Browser Guard blocks phishing pages and malicious sites automatically. Free, one click to install. Add it to your browser →

Chrome is rolling out an update for its desktop browser. The update includes 327 security fixes, ten of which address critical vulnerabilities.

The stable channel has been updated to 152.0.7977.64/.65 for Windows and Mac, and 152.0.7977.64 for Linux.

How to update Chrome

If you don’t want to wait for the rollout to reach you, manually updating is easy.

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it automatically. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

We want to highlight two vulnerabilities out of the hundreds because we think they could attract attackers if they go unpatched for too long. Both can be triggered by simply visiting a malicious website.

The first is a critical vulnerability in ANGLE (Almost Native Graphics Layer Engine), tracked as CVE-2026-79282. A remote attacker could exploit it using a crafted HTML page to execute arbitrary code outside the browser sandbox.

Chrome uses ANGLE to translate graphics commands used by web pages and browsers into something your operating system and graphics card can process.

Chrome vulnerabilities that enable remote code execution outside the browser sandbox are particularly valuable to attackers because they can turn a visit to a malicious or compromised website into direct code execution on the underlying operating system, often without requiring additional exploitation steps.

A researcher also discovered a use-after-free vulnerability in Chrome’s V8 engine. Tracked as CVE-2026-78899, it has a CVSS score of 8.8 out of 10.  Successful exploitation of this could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page.

Chrome’s V8 engine is the part of Chrome, and other Chromium-based browsers, that runs JavaScript. Use-after-free is a class of vulnerability caused by incorrect use of dynamic memory during a program’s operation. If, after freeing a memory location, a program does not clear the pointer to that memory, an attacker may be able to use the error to manipulate the program.

The phrase “inside the sandbox” means the malicious code would run in a restricted, sealed-off environment rather than directly on your whole computer. That limits what the attacker can do as it constrains them to the browser, lowering the impact compared with code running outside the sandbox. However, attackers often chain multiple vulnerabilities together to escape the sandbox and achieve a more serious compromise. So, the phrase describes an important security limitation, but it does not mean the vulnerability is harmless.

Stop threats before they can do any harm.

Malwarebytes Browser Guard blocks phishing pages and malicious sites automatically. Free, one click to install. Add it to your browser →

Chrome is rolling out an update for its desktop versions. The update includes 15 security fixes, two of which address critical buffer overflow vulnerabilities.

The stable channel has been updated to 151.0.7922.169/.170 for Windows and Mac, and 151.0.7922.169 for Linux.

How to update Chrome

If you don’t want to wait for the rollout to reach you, manually updating is easy.

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you never close your browser or if something goes wrong, such as an extension preventing the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it automatically. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can find an explanation of the version numbering system and step-by-step instructions in our guide: How to update Chrome on every operating system.

Technical details

As mentioned earlier, the two vulnerabilities rated critical in this update are both buffer overflow flaws.

A buffer overflow is a type of software vulnerability that exists when an area of memory within a software application reaches its address boundary and writes into an adjacent memory region. In software exploit code, two common areas that are targeted for overflows are the stack and the heap.

The first one is tracked as CVE-2026-76034 and was found in WebGL (Web Graphics Library). WebGL is a JavaScript application programming interface (API) that allows web browsers to render interactive 2D and 3D graphics smoothly. A remote attacker can exploit this vulnerability to execute arbitrary code outside the sandbox via a crafted HTML page. 

The second critical vulnerability is tracked as CVE-2026-76036 and sits in Dawn, the underlying open-source library that implements the WebGPU standard. It acts as a bridge, allowing web apps to talk directly to computer graphics hardware. This vulnerability also allows a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page.

Chrome vulnerabilities that enable remote code execution outside the browser sandbox are particularly valuable to attackers because they can turn a visit to a malicious or compromised website into direct code execution on the underlying operating system, often without requiring additional exploitation steps.

The sandbox normally limits a compromised renderer process’s access to files, devices, and other sensitive system resources. Bypassing it substantially expands an attacker’s ability to steal data, establish persistence, deploy malware, or move further through an enterprise environment.

From reporting threats to removing them.

Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.

Apple has released security updates for more than two dozen security vulnerabilities across iPhone, iPad, and macOS Tahoe,including yet another image parsing vulnerability that could compromise your device.

This update delivers security fixes that were first made available in the iOS 27 and iPadOS 27 betas.

Updates for your particular device

The table below shows which updates are available and points you to the relevant security content for each one.

How to update your Apple devices

How to update your iPhone or iPad

For iOS and iPadOS users, here’s how to check if you’re using the latest software version:

Go to Settings > General > Software Update. You will see if there are updates available and be guided through installing them.

Turn on Automatic Updates if you haven’t already—you’ll find it on the same screen.

How to update macOS on any version

To update macOS on any supported Mac, use the Software Update feature, which Apple designed to work consistently across all recent versions. Here are the steps:

• Click the Apple menu in the upper-left corner of your screen.
• Choose System Settings (or System Preferences on older versions).
• Select General in the sidebar, then click Software Update on the right. On older macOS, just look for Software Update directly.
• Your Mac will check for updates automatically. If updates are available, click Update Now (or Upgrade Now for major new versions) and follow the on-screen instructions. Before you upgrade to macOS Tahoe 26, please read these instructions.
• Enter your administrator password if prompted, then let your Mac finish the update (it might need to restart during this process).
• Make sure your Mac stays plugged in and connected to the internet until the update is done.

Technical details

Of the 27 vulnerabilities, CVE-2026-65346 is the one that stands out. It is an ImageIO integer-overflow bug in which merely processing a malicious image may result in arbitrary code execution, a substantially stronger stated impact than the many “crash-only” findings in this release.

ImageIO is Apple’s framework that handles image parsing. An integer overflow means the vulnerability lets a malicious hacker trick the program into performing an integer operation where the result exceeds the allocated memory space. This can lead to attackers running malicious programs or gaining elevated privileges. In this case, it allows the attacker to run code on the target’s device.

There is no indication in Apple’s advisory that CVE-2026-65346 or any other listed vulnerability was exploited in the wild, but cybercriminals will often try to reverse engineer the patch to come up with an exploit, or the researchers who found it will post a proof-of-concept once everyone has had a chance to apply the update. At that point, these vulnerabilities can be used against you.

Scammers know more about you than you think. 

Malwarebytes Mobile Security protects you from phishing, scam texts, malicious sites, and more. With real-time AI-powered Scam Guard built right in. 

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Microsoft Defender’s latest patch bypass shows a familiar problem.

A newly disclosed Microsoft Defender flaw called ShieldBreak shows that fixing one attack path doesn’t always close every route to the same result.

Microsoft has assigned ShieldBreak the identifier CVE-2026-69414 and confirmed it is an elevation of privilege (EoP) vulnerability in the Microsoft Malware Protection Engine. Microsoft says it is still working on a security update.

If that sounds somehow familiar, you’re probably thinking of RoguePlanet, another vulnerability in Defender that Microsoft acknowledged on June 16 and patched on July 8.

A short timeline

At the time, the published exploit for RoguePlanet was described as depending on a race condition, meaning it was not guaranteed to work the same way on every machine. That was one reason the vulnerability was concerning but still somewhat limited from a practical point of view.

Microsoft’s July fix should have closed the door on that problem. But security fixes do not always eliminate a weakness at the root of the problem. Sometimes they block one known attack path, while a researcher later finds a different route to reach the same end result.

That appears to be what happened here. ShieldBreak has been described as a patch bypass because it reportedly sidesteps the earlier RoguePlanet fix, although it uses a different exploitation method rather than simply repeating the original attack.

In August, the same researcher disclosed ShieldBreak, and Microsoft responded by publishing a new advisory for CVE-2026-69414.

The advisory says the issue has been publicly disclosed, proof-of-concept (PoC) exploit code exists, exploitation is considered more likely, and no official fix is available yet. Microsoft says it is working on one.

How to stay safe

Until Microsoft releases a fix, the most important protection is preventing untrusted code from running on your computer in the first place. ShieldBreak is a local privilege escalation issue, so an attacker first needs some level of access to the machine.

Based on the best public reporting available right now, ShieldBreak appears to require Microsoft Defender to be enabled in order to work. Public testing indicates that the exploit does not succeed when Defender is off or when another product is registered as the active antivirus provider.

So, narrowly speaking, disabling Defender appears to stop this specific ShieldBreak chain from working. However, that is not a good safety recommendation for most people. Turning off your antivirus removes an important layer of protection and could leave your computer exposed to other attacks.

For home users, all that means:

• Install Microsoft’s security updates as soon as they become available.
• Be very careful with downloads, email attachments, cracked software, and “fix” tools from random websites.
• Keep backups of important files somewhere not directly connected to the PC.
• Use an up-to-date, real-time anti-malware solution to alert you about and remove threats from your computer.

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The Dutch National Cyber Security Centre (NCSC) issued a warning after being notified of several incidents where a vulnerability in Apple’s Screen Sharing feature was exploited to install Monero cryptominers.

The vulnerability, tracked as CVE-2026-65400, was patched by Apple on August 6. It is an authentication-bypass flaw in macOS Screen Sharing that can let an attacker on the network connect without valid credentials.

macOS’s built-in Screen Sharing service is a remote-control feature commonly associated with port 5900. Successful exploitation can allow a remote attacker on a reachable network to authenticate to the service without legitimate credentials.

Apple said the bug was fixed through “improved state management,” which suggests an authentication-flow or session-state validation failure rather than a cryptographic break.

The patch was issued for macOS Tahoe 26.6.1, Sequoia 15.7.9, and Sonoma 14.8.9. Practical exposure requires Screen Sharing to be enabled, so the highest-risk systems are those where port 5900 is internet-accessible, typically through a router port-forward, public IP assignment, or hosting-provider setup. Hosts reachable only from an internal network are still potentially exposed, but attackers would have to gain a position on that network.

An attacker could view and control the Mac remotely because that is the function Screen Sharing provides. NCSC says active cases involved attackers gaining root access and installing cryptomining software, specifically for Monero mining.

The criminals likely chose Monero mining because it does not depend on heavily specialized, application-specific integrated circuits (ASICs), but can be done with any CPU or GPU.

Cryptomining isn’t necessarily the worst an attacker could do. With a root-level compromise an attacker could enable persistence, data theft, credential and key harvesting, deployment of additional malware, and lateral movement.

How to stay safe

Install the update

The best way to protect your Mac is to install the update.

To update macOS on any supported Mac, use the Software Update feature, which Apple designed to work consistently across all recent versions. Here are the steps:

• Click the Apple menu in the upper-left corner of your screen.
• Choose System Settings (or System Preferences on older versions).
• Select General in the sidebar, then click Software Update on the right. On older macOS, just look for Software Update directly.
• Your Mac will check for updates automatically. If updates are available, click Update Now (or Upgrade Now for major new versions) and follow the on-screen instructions. Before you upgrade to macOS Tahoe 26, please read these instructions.
• Enter your administrator password if prompted, then let your Mac finish the update (it might need to restart during this process).
• Make sure your Mac stays plugged in and connected to the internet until the update is done.

Make sure Screen Sharing is disabled

If you can’t update immediately, check whether Screen Sharing is enabled and turn it off if you don’t use it.

1.  Click the Apple menu in the top-left corner of the screen.
2. Select System Settings.
3. In the left sidebar, click General.
4. Click Sharing on the right; you may need to scroll down.
5. Find Screen Sharing:
   • If the switch is off/grey, it is disabled.
   • If the switch is on/colored, click it to switch it off.

Also check Remote Management on that same Sharing page. It provides another remote-control route and should be off unless the owner knowingly uses it for work or IT support.

Macs need protection too

Malwarebytes Premium Security for Mac stops threats and protects your Mac and personal files from hackers and cybercriminals.

Researchers have found three vulnerabilities in the popular Zoom meeting platform that could let one meeting participant attack another through malicious collaboration data.

The vulnerabilities, tracked as CVE-2026-53413, CVE-2026-53414, and CVE-2026-53415, affect the code Zoom uses to process annotation data shared during meetings. The researchers named the set of flaws “Zoomsday.”

Affected applications are:

• Zoom Workplace on all supported platforms before version 7.1.5 and 7.0.6, depending on the release branch
• Zoom Workplace VDI Client for Windows before versions 7.0.11 and 6.6.16, depending on the release branch
• Zoom Rooms on all supported platforms before version 7.1.5
• Zoom Meeting SDK on all supported platforms before version 7.1.5

What can happen

What this means is that someone in the same Zoom meeting could send data that the Zoom app was not prepared to handle. Instead of simply displaying a drawing, text box, or other annotation, a vulnerable client could be tricked into crashing, leaking information, or even running attacker-controlled code.

Annotation features sound simple, but the underlying process is not. Your Zoom client receives structured data from another participant and turns that data into an object it can display on screen. According to the research, the annotation parser contained several memory-safety bugs. Like any software that processes data supplied by a third party, it has to be very careful about validating lengths, counts, and references before using them.

Remarkably, there is a discrepancy between the severity ratings assigned by the researchers, who rated them as Critical, and Zoom, which rated them as High.

The difference appears to come down to how the vulnerabilities are scored under the Common Vulnerability Scoring System (CVSS score). Zoom considers successful exploitation to require user interaction.

In practice, an attacker would first need to get into the same meeting as the intended victim. That could mean joining an open meeting, abusing a leaked meeting link, posing as an expected attendee, or compromising an account that already has access. Zoom considers it user interaction if the attacker persuades the target to join a meeting with the intent to compromise their machine.

How to stay safe

Zoom has published a security bulletin explaining which programs need to be updated and where to find the fixed versions.

To protect yourself from Zoomsday and have safe meetings:

• Update Zoom to the latest version as soon as possible.
• Restrict who can join your Zoom meetings. Use passcodes, waiting rooms, authenticated-user restrictions, and unique meeting links for sensitive calls.
• If features like annotation, whiteboards, remote control, file transfer, or third-party apps are not needed, consider turning them off, especially for meetings that have an open invitation nature.
• One crashed meeting is not proof of an attack, but if it happens on a regular basis, it’s worth investigating.
• Use an up-to-date, real-time anti-malware solution to block malicious code on your devices.
• Organizations should also check their device-management tools to make sure every deployed Zoom client is receiving updates.

From reporting threats to removing them.

Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.

Microsoft’s August 2026 Patch Tuesday addresses 421 Microsoft vulnerabilities, including 62 rated Critical. One Windows vulnerability has been exploited in the wild by the Lazarus group to gain SYSTEM privileges.

The August update is smaller than July’s record-breaking release, but it’s still among Microsoft’s largest Patch Tuesday batches. More importantly, it includes several flaws likely to attract attacker interest: a publicly disclosed Windows privilege escalation flaw with a proof-of-concept (PoC), a newly completed unauthenticated SharePoint remote code execution (RCE) chain, and a potentially wormable Windows DNS Server flaw.

How to apply patches and check if you’re protected

These updates fix security problems and help keep your Windows PC protected. Here’s how to make sure you’re up to date:

• Click the Start button, then open Settings.
• Select Windows Update (usually at the bottom of the menu on the left).
• Click Check for updates. Windows will search for the latest security updates. If you’ve enabled Get the latest updates as soon as they’re available under More options, you may be prompted to restart immediately to complete the update. Otherwise, continue to the next step.

• If updates are available, they’ll start downloading automatically. When they’re ready, click Install or Restart now if prompted. Your computer may need a restart to finish the update.
• After restarting, go back to Windows Update and check again. If it says You’re up to date, you’re all set.

Technical details

Windows Deployment Services (WDS) users should prioritize CVE-2026-62893 (CVSS score 9.8 out of 10), an unauthenticated RCE flaw in the TFTP (Trivial File Transfer Protocol) server. TFTP normally runs on UDP port 69 and has no built-in authentication. It is primarily an enterprise and school network issue, but it could enable lateral movement where WDS is deployed.

Microsoft also fixed CVE-2026-62832, a publicly disclosed elevation of privilege (EoP) vulnerability in the Windows User Profile Service. It maps to the issue researchers called LegacyHive, for which a limited public proof of concept was released in July.

The PoC demonstrates how a local authenticated attacker could abuse the service’s registry hive handling to load another user’s hive, potentially including an administrator’s. The released demonstration is deliberately constrained and requires credentials for another user, but the availability of code and the broad Windows footprint make this one a strong candidate for exploitation attempts.

Another good reason to promptly update is the number (I counted 48) of remote code execution (RCE) fixes for Office applications and components, including Excel, Word, Outlook, PowerPoint, and the Office graphics component. Document-borne vulnerabilities are attractive to phishing operators because email attachments and shared documents provide delivery mechanisms that people are likely to open.

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Three WebKit mechanisms have been discovered to bypass Apple’s iCloud Private Relay. In fact, the mechanisms can bypass any browser‑level proxy configuration, including Psylo’s proxy, Tor-on-iOS proxy setups, and so on.

Private Relay is a VPN-like system for Safari on iOS which is meant to prevent websites from viewing the visitor’s IP address and location.

But because all three methods described by the researchers occur outside WebKit’s normal page loading path, Apple’s iCloud Private Relay never sees them and, as a result, means you can’t hide your IP address or Domain Name System (DNS) path in these cases.

The three features are:

• DNS prefetching
  Modern browsers try to be faster by looking up the IP addresses of links on a page before you click them, a feature known as DNS prefetching. In WebKit, these DNS lookups can bypass the configured proxy/relay and go straight through the system’s normal DNS stack, exposing which DNS servers you are using and, indirectly, where you really are. Even if the actual page load goes through Private Relay, the prefetch DNS queries can still leak metadata about your network.
• WebAuthn and passkeys
  WebAuthn (the standard behind passkeys) sometimes needs to fetch a small file from the website’s domain to verify that the credential is being used on the right site. The researchers found that, on Apple platforms, this fetch is performed outside the usual WebKit page‑loading path, which means it is not sent through the Safari proxy or Private Relay. The result is that a site using passkeys can cause your device to contact it directly, revealing your true IP address even if the rest of your browsing is supposedly hidden behind a relay.
• WebTransport and related technologies
  WebTransport is a newer API that gives websites a way to open low‑latency, bidirectional connections to a server. In the scenarios the researchers tested, these WebTransport connections were also initiated outside the proxied WebKit code path, creating another route for sites to receive traffic straight from the device. That traffic again carries the device’s real IP, not the relay or proxy IP the user expects.

From a user‑experience point of view, the problem is that all three mechanisms look like normal browser behavior and require no special tricks from a malicious site.

What’s affected

Affected are Safari on iOS and macOS when Private Relay is used, because Private Relay is implemented as a WebKit‑level proxy that only applies to Safari traffic. Additionally, any iOS/macOS browser or app that relies on WebKit’s proxy configuration to hide the IP (e.g., Psylo, Onion Browser/Tor on iOS, and other proxy browsers), since they all hit the same WebKit behavior.

And that’s not necessarily all. For most of iOS’s history, any app that browsed the web had to use Apple’s WebKit framework and JavaScript engine. This meant that Chrome, Firefox, Edge, Brave, and other browsers on iPhone were effectively different shells around the same WebKit engine Safari uses. Under pressure from the EU’s Digital Markets Act (DMA), Japan’s Smartphone Act, and similar regulatory pushes, Apple introduced a mechanism for non‑WebKit engines, but only in constrained ways.

Malwarebytes’ Senior manager for iOS software Roman Dvoinev commented:

“Basically the API has been “open” for a while, but no browser vendor has actually shipped a non-WebKit browser yet. Major players are still in prototype phase, as Apple’s bar for shipping a browser to iOS is very high.”

Malwarebytes VPN is not affected, since it tunnels the device’s entire network traffic at the system level.

The researchers have reported the problems to Apple and are expecting patches by fall.

Browse like no one’s watching. 

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Apple has shipped a hefty round of July security patches, headlined by iOS/iPadOS 26.6, macOS Tahoe 26.6, and Safari 26.6, with dozens of vulnerabilities squashed across kernel, WebKit, media frameworks, and core apps. These updates are primarily about improving security rather than adding new features, and users should install them as soon as possible.

Updates for your particular device

The table below shows which updates are available and points you to the relevant security content for that subject.

How to update your Apple devices

How to update your iPhone or iPad

For iOS and iPadOS users, here’s how to check if you’re using the latest software version:

Go to Settings > General > Software Update. You will see if there are updates available and be guided through installing them.

Turn on Automatic Updates if you haven’t already—you’ll find it on the same screen.

How to update macOS on any version

To update macOS on any supported Mac, use the Software Update feature, which Apple designed to work consistently across all recent versions. Here are the steps:

• Click the Apple menu in the upper-left corner of your screen.
• Choose System Settings (or System Preferences on older versions).
• Select General in the sidebar, then click Software Update on the right. On older macOS, just look for Software Update directly.
• Your Mac will check for updates automatically. If updates are available, click Update Now (or Upgrade Now for major new versions) and follow the on-screen instructions. Before you upgrade to macOS Tahoe 26, please read these instructions.
• Enter your administrator password if prompted, then let your Mac finish the update (it might need to restart during this process).
• Make sure your Mac stays plugged in and connected to the internet until the update is done.

How to update your Safari browser

Safari updates are included with macOS updates, so installing the latest version of macOS will also update Safari. To check manually:

• Open the Apple menu > System Settings > General > Software Update.
• If you see a Safari update listed separately, click Update Now to install it.
• Restart your device when prompted.

If you’re on an older macOS version that’s still supported (like Sonoma or Sequoia), Apple may offer Safari updates independently through Software Update.

Technical details

Among the more interesting vulnerabilities patched in this update are CVE-2026-43818 in ImageIO,  CVE-2026-43776 in AppleDouble, and CVE-2026-64763 to 64766 in SceneKit.

Although found in different applications, these vulnerabilities have one thing in common. Their descriptions say:

“Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.”

The identical “processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution” language is not a coincidence. It’s Apple’s standard impact boilerplate for file‑parsing bugs across multiple frameworks, including ImageIO, AppleDouble, and SceneKit. The similarities reflect shared exploitation patterns (untrusted file input hitting native parsers), while the differences lie in what each framework does and which file types/contexts are affected.

ImageIO is the system framework responsible for reading and displaying image formats such as JPEG, PNG, TIFF, RAW, GIF, and other formats. It’s used throughout iOS and macOS by apps including Photos, Safari, Messages, Mail, and Preview.

SceneKit is a 3D graphics and scene graph framework used for rendering models, animations, and complex 3D scenes in apps and games on Apple platforms. It parses scene description files and 3D assets and turns them into renderable content.

AppleDouble is something macOS uses behind the scenes to keep extra file information like icons and other Finder details in cases where your files live on certain types of disks or servers. When Apple mentions “AppleDouble” in security notes, it’s talking about the code that reads and writes that hidden metadata, particularly when files are stored on network drives or shared with non‑Apple systems.

Apple’s advisories reuse a standard warning for any memory‑corruption bug in a file parser: the best‑case outcome is just a crash, the worst case is someone running their malicious code on your device. ImageIO, AppleDouble, and SceneKit all sit in that same danger zone. Although the file types are different, they all present the same underlying risk.

Until you’ve installed this update, it’s an even worse idea than usual to open unsolicited messages and emails with images in them.

Scammers know more about you than you think. 

Malwarebytes Mobile Security protects you from phishing, scam texts, malicious sites, and more. With real-time AI-powered Scam Guard built right in. 

Download for iOS → Download for Android → 

A car alarm vendor’s coding mistake has left millions of vehicles vulnerable to theft and location tracking. Thanks to the way dealers sell car alarms, many affected drivers don’t even know they have one installed.

The device is the KARR Security System, a Bluetooth-enabled aftermarket alarm built by Acrisure Protection Group. It’s installed by dealers, primarily at Honda, Toyota, Mazda, Ford, and Jeep dealerships in Southern California.

Aftermarket car alarms are a strange corner of the auto industry. Dealers install them in your car before you ever see the vehicle, then try to sell you the subscription afterward. Say no and the hardware still stays put. According to researchers at the University of California San Diego, KARR systems are installed in about 2.2 million American vehicles, and around half of owners don’t even know they’re there.

The research team, led by computer science professor Aaron Schulman, investigated the system and found a single design flaw repeated across nearly a decade of installations.

Every KARR device shares the same authentication key, and it’s stored in plain text inside the KARR smartphone app. Extract it once and you can communicate with any KARR-equipped vehicle made since 2017. That is what the researchers did.

What the attack actually does

Standing within about five yards of a target vehicle, an attacker using the researchers’ proof-of-concept tool can unlock the vehicle and even disable its ignition, potentially leaving a driver stranded. The only outward sign is a brief beep and flicker when the command is sent. The owner receives no alert.

The location tracking issue is arguably even more concerning. KARR units continuously broadcast Bluetooth identifiers, so crowdsourced radio databases like WiGLE have been logging their locations for years. Feed a device’s identifier into WiGLE and you can build a picture of where that car has been parked. It’s a stalker’s dream. The researchers also demonstrated a “mayhem” mode that triggers horns and lights across multiple parked vehicles at once.

Owners who declined the paid service and assumed the hardware was inactive were wrong. According to the researchers, dormant units accept a single Bluetooth wake-up command before exposing the same functionality.

Eighteen months, one conference deadline

UC San Diego disclosed the flaw to Acrisure in January 2025, but a firmware fix did not arrive until July 20, 2026—roughly 18 months later, and only weeks before the team was due to present its findings at the DEF CON hacker conference next month. Acrisure has publicly characterized the real-world risk as low.

Compare that with Subaru’s response to a similar connected-car flaw disclosed last year. Researchers found that Subaru’s Starlink admin portal could hand over any car to anyone armed with a license plate and the owner’s last name or email. From there, someone could unlock the doors and start the engine—or dig into a year of location history accurate to within five meters.

The underlying problems there were an insecure password-reset endpoint and weak protection against two-factor authentication (2FA) bypass. Subaru fixed the issues within 24 hours.

The fix can’t reach half its audience

The awkward part here is that the patch ships through the KARR companion app, which only paying customers would ever have downloaded. The researchers estimate that at least half of car owners with these devices installed didn’t ask for it, meaning that there’s little chance they’ll run the app or update the firmware. Roughly a million people cannot patch what they do not know exists. This includes many folks who might have purchased a KARR-equipped vehicle on the second-hand market.

How to check your car

Look for a KARR sticker on the driver-side window, or one reading “SWDS” for SouthWest Dealer Services (an Acrisure subsidiary). Then check the underside of the dashboard for a small button with a blinking light, according to Wired. If you find one, download the KARR app and apply the firmware update—even if you never knowingly signed up for the alarm in the first place.

From reporting threats to removing them.

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HermeticReader is the name given to a recently disclosed vulnerability in the Adobe Acrobat PDF extension for Chrome, tracked as CVE-2026-48294.

Researchers discovered the issue in early June 2026 and reported it to Adobe, which patched the flaw over a single weekend. They found that a single visit to a malicious website could turn Adobe’s Acrobat Chrome browser extension into a silent spy on your WhatsApp Web conversations.

The exploit worked across platforms, meaning any Windows, macOS, Linux, or ChromeOS device was potentially vulnerable if it met three conditions:

• It used Google Chrome or another Chromium-based browser compatible with Chrome extensions, which account for around 78% of the browser market.
• It had the vulnerable Adobe Acrobat PDF extension installed and enabled. The extension has reportedly been installed on around 329 million browsers.
• It had at least one WhatsApp Web tab open or the user was logged into WhatsApp Web when they visited a malicious website.

HermeticReader did not exploit a bug in WhatsApp itself. It also didn’t require malware on the device or stolen usernames and passwords.

There are plenty of potential victims. And if these conditions were met, a visit to a specially crafted website could give an attacker access to your WhatsApp chat list, contact names, profile name, messages, and the contents of whichever conversation was open at the time.

How the attack worked

HermeticReader effectively broke the browser’s same‑origin protections via the Adobe extension’s privileged context. Same‑origin protections are basically the browser’s rule that says websites aren’t allowed to snoop on each other’s private data unless they’re clearly part of the same site (same scheme, host, and port).

The problem was that the Adobe extension operated with much higher privileges than a normal website, effectively bypassing those restrictions. It was like giving a visitor a master key that opened every apartment in the building instead of just the one they were invited into.

How to stay safe

Adobe fixed the vulnerability in version 26.5.2.3 of the Acrobat PDF extension. The update is installed automatically, but it’s worth checking that you’re running the latest version. Versions 26.5.2.2 and earlier are affected by HermeticReader.

The affected extension ID is efaidnbmnnnibpcajpcglclefindmkaj.

You should also:

• Review the devices linked to your WhatsApp account and sign out of any you don’t recognize or no longer use.
• Remove browser extensions you don’t use, recognize, or trust.
• Keep software and extensions updated so security fixes are installed as soon as they’re available.

HermeticReader is a reminder that browser extensions sit in a powerful position between users and the web, and that convenience integrations can become privacy liabilities if messaging and storage flows are not tightly constrained. Even well‑known brands can ship features that briefly put your privacy at risk.

Scammers don’t need to hack you. They just need you to click once. 

Malwarebytes Identity Theft Protection catches suspicious activity before it becomes a problem.

WordPress has patched a serious core vulnerability chain known as wp2shell, and site owners are understandably focused on updating their own sites. But there’s another question worth asking: what happens to ordinary visitors when they land on a compromised site?

Because a hacked website becomes a delivery mechanism for scams, credential theft, malware, and malicious redirects.

The wp2shell vulnerabilities are especially concerning because they affect WordPress Core itself, don’t require a malicious or vulnerable plugin, and can be exploited without authentication on vulnerable versions. Experts say the chain can lead to full administrative control of a site and remote code execution with web server privileges, meaning an attacker can change what the site serves to visitors.

And cybercriminals are already doing their dirty work:

“Exploitation activity began within hours of the patch release. Wordfence observed endpoint probing and SQL injection attempts the same evening, and public proof-of-concept code was reported in the days that followed.”

Once attackers control a WordPress site, they rarely stop at defacement. A common next step is to quietly inject JavaScript, redirect visitors to malicious pages, or load content from attacker-controlled infrastructure. That can expose visitors to fake login pages, scam pop-ups, browser-based malware, or drive-by downloads, depending on the attacker’s goals.

The possible harm

This isn’t an exhaustive list, but these are some of the ways visitors to a wp2shell-compromised site could be affected:

• Credential theft. Attackers can inject fake login forms or iframe-based overlays that imitate Microsoft 365, Google, banking, or social media sign-in pages to steal usernames and passwords.
• Malware delivery. The site can be turned into a staging point for browser exploitation, malicious downloads, or redirect visitors to malware-hosting pages.
• Scams and fraud. Visitors may be redirected to fake support pages, fake giveaways, or fraudulent payment prompts.
• Tracking and profiling. Attackers can use injected scripts to fingerprint visitors, harvest browser details, and track victims across sessions.
• Search and reputation damage. Search engines and security tools may flag the site, which can expose visitors to warnings and reduce trust long after the initial compromise.

What you can do

Be cautious, even on websites you normally trust. If something looks different from what you’d expect, treat it as a warning sign.

Be especially wary of unexpected login prompts, download requests, and browser warnings. For site owners, it means patching quickly and treating compromise as a possibility, not an edge case.

Keep your operating system, browsers, and security software up to date. Compromised websites can also try to exploit known vulnerabilities on visitors’ devices.

Use an up-to-date, real-time anti-malware solution that can alarm you if a website tries to infect your device.

Pro tip: Use Malwarebytes’  free Browser Guard extension. It uses heuristic detection to identify malicious websites, block scams, and protect against other web-based threats.

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Malwarebytes Browser Guard blocks phishing pages and malicious sites automatically. Free, one click to install. Add it to your browser →

Shark’s cloud-connected robot vacuums are currently exposed by an unpatched AWS (Amazon Web Services) IoT (Internet of Things) policy flaw that could turn one compromised device into a remote-control skeleton key for many others in the same region, with access to cameras, maps, and Wi‑Fi passwords.

A researcher using the handle tokay0 took apart a Shark RV2320EDUS robot vacuum and found that its embedded AWS IoT certificate is allowed to publish and subscribe to topics for any Shark device in the same AWS Region, not just itself.

An AWS Region is a distinct geographical location where Amazon clusters its cloud data centers. Each AWS Region is completely isolated from the others. There are currently 39 AWS Regions worldwide.

By design, AWS provides per-device “shadows” that store state such as configuration and commands. However, Shark’s overly permissive Message Queuing Telemetry Transport (MQTT) policy lets a stolen certificate talk to other vacuums’ shadows as well.

Simply put, this means that each vacuum is supposed to have its own private “inbox” in the cloud. Because Shark’s cloud rules are too broad, a certificate stolen from one vacuum can also send commands to other vacuums’ inboxes.

While the certificate was extracted from the vacuum using physical access and a debug console, meaning the initial compromise requires hands‑on access, the subsequent abuse is remote and cloud‑based.

For owners, this is not just about someone starting your vacuum at 3:00 am. According to the researcher, an attacker with that cloud access could:

• Watch from the vacuum’s camera, turning it into a mobile surveillance device inside your home.
• Steal the Wi‑Fi password, which the researcher says is stored in plaintext, potentially giving them a foothold on your local network.
• Copy the vacuum’s map of your house, revealing room layouts and how frequently different areas are used.

We have seen before how “smart” vacuums can become privacy and safety risks when vendors cut corners on security. Malwarebytes Labs has covered how Ecovacs robot vacuums could be hijacked to play obscene messages and spy on users through their speakers and sensors, showing how quickly a helpful household appliance can become an unwanted house guest.

Using the certificate from his own vacuum, the researcher was able to monitor traffic from Shark devices in the same AWS Region and determine which ones supported remote command execution. During a 24‑hour period in a single AWS Region, the researcher observed 1,517,605 unique Shark serial numbers and observed 673,816 devices (about 44%) responded in a way that indicated support for the remote command execution feature.

The researcher wrote:

“It is difficult to estimate the exact number of affected devices and even more difficult to find which devices have these misconfigured certificates that allow cross-device publishing.”

But concluded that:

“A very large number of SharkNinja IoT devices are affected by this vulnerability.”

How to stay safe

The problem at the heart of this issue is a cloud-side policy that is not strict enough. That makes this a server-side problem, not a firmware bug you can patch yourself.

According to the researcher, SharkNinja has not fixed the vulnerability despite being notified more than six months ago. Until that changes, owners should:

• Put pressure on Shark to fix the issue.
• Disable remote control for the vacuum or disconnect it from Wi-Fi if you do not need its smart features.
• Watch for announcements from Shark about a fix, CVE, or recall.

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Security updates are not just for enterprises with a dedicated security team and a change-management calendar. For consumers and small businesses, they are one of the simplest ways to shut down known attack paths before criminals get a chance to use them.

That matters because attackers love these flaws. because browser bugs, code execution issues, authentication bypasses, and privilege-escalation problems can be turned into a foothold, a data theft opportunity, or a full system compromise if left unpatched.

If you only do one thing after reading a security advisory, make it this: update the affected software promptly, restart when required, and verify the version afterward.

Adobe

Adobe released a large batch of security updates covering ColdFusion, Commerce/Magento Open Source, and Experience Manager. The ColdFusion bulletin alone includes multiple critical flaws that could lead to arbitrary code execution.

The updates and instructions can be found on the pages we linked to.

Chrome

Google patched 15 security flaws in Chrome, including two critical use-after-free bugs in Ozone. The fixes are in Chrome 150.0.7871.124/.125, depending on platform.

You can find an explanation of the version numbering system and step-by-step instructions in our guide to how to update Chrome on every operating system.

Firefox

Mozilla fixed two critical Firefox flaws in Firefox 152.0.6, and it says public exploit code exists for both issues. One affects JavaScript/WebAssembly and the other involves DOM navigation and site isolation, which makes this more than routine housekeeping.

Users should update Firefox to version 152.0.6 as soon as possible. For most users this can simply be done by restarting the browser. If you see the “What’s new” tab, the update is complete.

VMWare

Broadcom released a fix for a critical authentication bypass in VMware Avi Load Balancer, tracked as CVE-2026-47865. The issue could allow a network-accessible attacker to reach the Avi Control Plane, which makes it especially important in environments that expose management services or rely on load balancers at the edge.

Updates and the instructions to apply them can be found in the Security Advisory.

Zoom

Zoom Security Bulletin ZSB-26014 covers a critical issue in Zoom Workplace for Windows, described as improper input validation. The public record identifies the issue as CVE-2026-53412.

For users, the action item is to update Zoom Workplace for Windows to the vendor-fixed release as soon as it is available in your environment. For small businesses, that means updating not just the app on employee laptops, but also any centralized deployment package so the old build doesn’t come right back on the next install cycle.

“One of the best cybersecurity suites on the planet.” 

According to CNET. Read their review →

First reported in May, ClaudeBleed is basically a “fake remote control” problem. A sneaky browser extension can pretend to be Claude’s own website and secretly drive the Claude for Chrome extension to read your data and take action in your accounts.

The Claude for Chrome browser extension is an assistant that has the user’s permission to access services like Gmail or Google Drive when you ask it to. ClaudeBleed happens because the extension can’t reliably tell the difference between the user asking for help and a malicious script asking on their behalf.

So instead of you clicking a button to say “Claude, read this email,” a rogue extension can whisper the same request behind your back, and Claude obliges. Or it can have Claude draft or send an email in your name.

Once a malicious extension can send commands to Claude as if it were you, it can:

• Ask Claude to read your Gmail, fetch Google Drive files, or clone private GitHub repositories, depending on what tools Claude for Chrome exposes.
• Have Claude send emails or manipulate documents under your logged‑in session, with no obvious indication that the request didn’t come from you.
• Leave you seeing only a normal‑looking Claude interaction or brief permission prompt, while the real driver is the rogue extension running in the background.

Anthropic acknowledged the researchers’ reports the next day, then closed both of them as resolved. But according to the researchers, while Anthropic’s fix addressed some symptoms, it left the fundamental privilege handoff and agency controls brittle. For example, an allowlist patch changed what could be asked, but not who could ask it.

After examining the latest version of Claude for Chrome, Manifold Security wrote:

“Eight Claude for Chrome releases later, the bypass is still six lines of JavaScript. We reported it to Anthropic in May. The code is unchanged in the latest version.”

How to stay safe

Users should remember that Claude for Chrome is still officially in beta before trusting it to perform tasks automatically. Some pointers:

• Turn off Act without asking in Claude for Chrome. This removes the assistant’s ability to perform actions without your approval, making it much harder for a rogue extension to abuse its permissions.
• Review your Chrome extensions and remove anything you don’t fully trust. Any extension that can run scripts on claude.ai may be able to trigger Claude’s tasks, so keep your extension list as small as possible. If you don’t recognize or use an extension, remove it.
• Be cautious about giving AI browser assistants access to sensitive accounts like Gmail, Google Docs, and Google Calendar. Limiting which services the assistant can access reduces your exposure if something goes wrong.
• Until Anthropic ships a more comprehensive fix, consider disabling Claude for Chrome on systems where you handle sensitive mail, documents, or business accounts.

Stop threats before they can do any harm.

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Just one month ago, June 2026 Patch Tuesday broke Microsoft’s previous record with 206 CVEs and three zero‑days. July now triples that count, reinforcing that the era of “small” Patch Tuesdays may be over as AI‑driven vulnerability discovery ramps up.

The update includes 59 critical vulnerabilities, as well as three publicly disclosed zero-days. Microsoft classifies these as zero-days because information about the vulnerabilities became public before patches were available. Two are known to be actively exploited by attackers.

How to apply patches and check if you’re protected

These updates fix security problems and keep your Windows PC protected. Here’s how to make sure you’re up to date:

1. Open Settings

• Click the Start button, then open Settings.

2. Go to Windows Update

• Select Windows Update (usually at the bottom of the menu on the left).

3. Check for updates

• Click Check for updates. Windows will search for the latest security updates.
• If you’ve enabled Get the latest updates as soon as they’re available under More options, you may be prompted to restart immediately. If so, restart your computer to complete the update. Otherwise, continue to the next step.
  

4. Download and install

• If updates are available, they’ll start downloading automatically. When they’re ready, click Install or Restart now if prompted. Your computer may need a restart to finish the update.

5. Double-check you’re up to date

• After restarting, go back to Windows Update and check again. If it says You’re up to date, you’re all set.

Technical details

Let’s look at the three zero-days.

First is a Windows BitLocker security feature bypass vulnerability, tracked as CVE-2026-50661. It is not known to be actively exploited. Microsoft describes it as:

“Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.”

In other words, even if you’ve encrypted your machine with BitLocker, an attacker could exploit this vulnerability to access your data if they have physical access to your computer.

Next is the actively exploited CVE-2026-56155, an Active Directory Federation Services (ADFS) elevation of privilege (EoP) vulnerability. ADFS is a Microsoft software component that provides single sign-on (SSO) and federated access. It acts as a trust broker between an organization’s Active Directory and applications. An attacker who successfully exploited this vulnerability could gain administrator privileges. Reportedly, Microsoft discovered the vulnerability while investigating active attacks.

Last but not least is CVE-2026-56164, a Microsoft SharePoint Server elevation of privilege vulnerability. SharePoint Server is the on-premises version of Microsoft’s web-based collaboration and document management platform. A missing authentication check in Microsoft Office SharePoint could allow an attacker to elevate privileges over a network.

Both actively exploited vulnerabilities have been added to the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog, which sets patch deadlines for Federal Civilian Executive Branch (FCEB) agencies. CISA has also urged organizations using SharePoint Server to implement hardening measures after the latest exploitations.

“One of the best cybersecurity suites on the planet.” 

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Updating Chrome is becoming an almost daily task lately. But it’s too important to ignore.

On Wednesday, July 8, Google released another Chrome update, just one day later after the previous one.

Between them, the two updates fixed 27 security vulnerabilities, including two critical flaws that could be exploited to compromise Chrome. Google says both are “use-after-free” memory vulnerabilities, which can sometimes allow attackers to run malicious code. Google has not reported any of these vulnerabilities as being actively exploited.

The Stable channel has been updated to 150.0.7871.114/.115 for Windows and macOS, and 150.0.7871.114 for Linux. The updates will roll out over the coming days and weeks.

How to update Chrome

If you don’t want to wait for the rollout to reach you, manually updating is easy.

The easiest option is to allow Chrome to update automatically. But you can end up lagging behind on updates if you rarely close your browser or if something goes wrong, such as an extension preventing the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it automatically. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can find an explanation of the version numbering system and step-by-step instructions in our guide to how to update Chrome on every operating system.

The version numbering system

With updates arriving within days of each other, it’s helpful to understand Chrome’s version numbering system so you can quickly tell whether you’re running the latest release.

The Chrome version number consists of four parts separated by dots, like this:

MAJOR.MINOR.BUILD.PATCH

Each part has a specific meaning. In order of relevance they are:

• MAJOR: This number increases with each major Chrome release, which may include new features or changes.
• MINOR: This number is typically zero and rarely changes. It mainly supports the versioning scheme but doesn’t usually affect how users track updates.
• BUILD: This number increases steadily and identifies a specific build of Chrome’s source code. When comparing versions, it is the first number to check after the major version.
• PATCH: This number increases as Google releases smaller fixes and security updates for a particular build. It resets with each new build and helps identify minor updates within the same build.

For example, a version like 137.0.7151.56 means:

• Major version 137 (the milestone release)
• Minor version 0 (almost always 0)
• Build number 7151 (the code snapshot)
• Patch number 56 (the latest fix for that build)

Why does the version number matter?

The BUILD and PATCH numbers together identify the exact version of Chrome you’re running. Even if two versions share the same major number, higher build or patch numbers means you have a newer, more up-to-date Chrome version.

Sometimes you might see slightly different patch numbers on the same major build, for example, 118.0.5993.117 vs. 118.0.5993.118. This usually happens because Google released a quick fix or minor patch shortly after the initial release. Both are part of the same major update, but the higher patch number is newer.

How to check if you have the latest version

To verify your Chrome version:

1. Open Chrome.
2. Click the three-dot menu (⋮) in the top-right corner.
3. Go to Help > About Google Chrome.

Chrome will display your current version and automatically check for updates. If an update is available, it will download automatically and prompt you to restart your browser.

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Microsoft issued a security update that fixes the zero-day vulnerability known as RoguePlanet in Microsoft Defender.

RoguePlanet is tracked as CVE-2026-50656, a Microsoft Defender elevation of privilege (EoP) vulnerability. As we reported last month, if successfully exploited, RoguePlanet can allow an attacker to elevate privileges from a standard user account to NT AUTHORITY\SYSTEM, the highest privilege level on Windows.

This means an attacker who gains access to a standard user account on your computer could use the vulnerability to take complete control of the system. They don’t need advanced hacking skills or administrator permissions to do this.

Microsoft fixed the vulnerability by releasing Microsoft Malware Protection Engine version 1.1.26060.3008, an update to the core scanning engine that powers Microsoft Defender and other Microsoft security products.

How to protect your system

If Windows Security shows that another antivirus, such as Malwarebytes, is protecting your PC and Microsoft Defender Antivirus is turned off (as shown below), this particular vulnerability does not affect your system. Defender’s scanning engine isn’t running, so it can’t be exploited through this flaw.

Most users are already protected

By default, Microsoft Defender automatically updates both its malware definitions and the Microsoft Malware Protection Engine.

But if you’re in any doubt, you can check the version of the Malware Protection Engine on your system. Here’s how:

1. Click the Start button, type Security, and choose Windows Security from the results.
   
2. Select Virus & threat protection, then under Virus & threat protection updates, click Check for updates.
3. Click Settings (the cog icon) then select About.
4. Look for a line called Engine Version. That number is the version of the Malware Protection Engine used by Microsoft Defender.
   • If your Engine Version is 1.1.26060.3008 or higher, your system has the patched (or newer) engine.
   • If your Engine Version is 1.1.26050.11 or lower, your system is still running a vulnerable engine. Run Windows Update and check for Defender updates again, or wait for the automatic update to complete.

Note: Version numbers are compared from left to right. For example, 1.1.26060.3008 is newer than 1.1.26050.11 because 26060 is higher than 26050.

If you use Windows Defender, leave automatic updates turned on. The Malware Protection Engine normally updates automatically, so most home users will receive the fix without doing anything. These steps are simply a way to double-check your system has the updated engine.

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Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.