iOS 18.6 and macOS Sequoia 15.6 Address Chrome Zero-Day Attack

The iOS 18.6, iPadOS 18.6, and macOS Sequoia 15.6 updates that Apple released yesterday address a major zero-day attack that targeted Chrome users, according to Bleeping Computer.

Chrome Feature 22
Apple says that CVE-2025-6558 was a vulnerability in open source code that also affected Apple software. The flaw could allow remote attackers to execute arbitrary code using HTML pages created for that purpose, escaping Chrome's sandboxing. Google patched the issue on July 15, and said that it had been actively exploited.

In Safari, Apple said that the issue could cause unexpected crashing, but it wasn't known to have been used in attacks against Safari users.

Google hasn't offered up technical details on how the exploit worked, and the company said that additional information would be restricted until the majority of users have updated their devices. Chrome users who have not installed the latest version of Chrome should do so.

Popular Stories

iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
macOS Tahoe 26 Thumb

Apple Releases macOS Tahoe 26.2 With Edge Light

Friday December 12, 2025 10:08 am PST by
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1. Mac users can download the macOS Tahoe update by using the Software Update section of System Settings. macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...

Top Rated Comments

adamw Avatar
19 weeks ago

Good reason not to trust Google ever :rolleyes:
This not only applies to Google Chrome, but also appears to affect Safari (by causing a crash to it.) Here is more about this exploit:

Insufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Tracked as CVE-2025-6558 ('https://nvd.nist.gov/vuln/detail/CVE-2025-6558'), the security bug is due to the incorrect validation of untrusted input in the ANGLE (Almost Native Graphics Layer Engine) open-source graphics abstraction layer, which processes GPU commands and translates OpenGL ES API calls to Direct3D, Metal, Vulkan, and OpenGL.

The vulnerability enables remote attackers to execute arbitrary code within the browser's GPU process via specially crafted HTML pages, potentially allowing them to escape the sandbox that isolates browser processes from the underlying operating system.
Score: 12 Votes (Like | Disagree)
ArtOfWarfare Avatar
19 weeks ago

Good reason not to trust Google ever :rolleyes:
This impacts all Chromium browsers, so Brave, Edge, Opera, and most other browsers not named Firefox or Safari.

The same issue causes Safari to crash, which while inconvenient, is preferable to having malicious code able to access data that it shouldn't.

What happens in Firefox?
Score: 11 Votes (Like | Disagree)
Love-hate ? relationship Avatar
19 weeks ago

Good reason not to trust Google ever :rolleyes:
You know how often this has happened to safari? I'll tell you: a damn lot

And when this happens, you need a WHOLE OS update to fix it , while chrome only needs an app update most of the time (not this time around though)
Score: 7 Votes (Like | Disagree)
adamw Avatar
19 weeks ago

How is that even possible unless the person downloads a file or allows third party apps? ?
Sounds like if a Google Chrome (or Safari) user went to view any web page with the malicious code embedded, it could take over their whole system by "allowing remote users to execute arbitrary code" on their machine. Appears to affect anyone using the web browser to view an infected web site, and not only to affect downloads of files or third party apps.
Score: 6 Votes (Like | Disagree)
star-affinity Avatar
19 weeks ago

Good reason not to trust Google ever :rolleyes:

Well, that's not true as Safari is a separate download on Ventura and Sonoma (and every other supported macOS that's not the current one). Having to install a whole point update on the most recent macOS is a choice Apple makes.
But what is true is that security problems are continuously discovered in software from all vendors and it’s definitely not the last time it happens in code written by folks from Google nor Apple.
Score: 6 Votes (Like | Disagree)
culex Avatar
19 weeks ago

Apple released yesterday address a major zero-day attack that targeted Chrome users
How can Apple fix a Chrome bug? That's right, they can't. They simply used the same buggy open source code in Webkit and patched it two weeks after Google. Pretty misleading headline.
Score: 5 Votes (Like | Disagree)