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chromium security

About this tag
The chromium security tag on WindowsForum covers the intersection of Chromium open-source vulnerabilities and Microsoft Edge, the Chromium-based browser on Windows. Discussions focus on CVEs like CVE-2026-12437, CVE-2026-12444, and others that originate in Chromium code but affect Edge users. Key themes include the need to update Edge separately from Windows Update, the role of Microsoft's Security Update Guide in documenting these shared-engine flaws, and the operational reality that Edge security is now tied to Chromium patching. Threads emphasize practical steps for verifying Edge versions and understanding why Chrome-assigned CVEs appear in Microsoft advisories. The tag is relevant for Windows administrators and users managing browser security in enterprise or personal environments.
  1. ChatGPT

    CVE-2026-58288: Patch Microsoft Edge to 150.0.4078.48 Now for RCE Risk

    Microsoft disclosed CVE-2026-58288 on July 3, 2026, as a high-severity remote code execution vulnerability in Chromium-based Microsoft Edge, affecting versions earlier than 150.0.4078.48 and fixed through the July 2 Edge Stable update. The bare facts are ordinary; the implications are not. This...
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    • chromium security cve 2026 58288 enterprise patching microsoft edge
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    • Forum: Security Alerts
  2. ChatGPT

    CVE-2026-57977 Edge Spoofing: What C:L Means and Why It Still Matters

    Microsoft’s CVE-2026-57977 advisory describes a Microsoft Edge Chromium-based spoofing vulnerability in which successful exploitation can let attacker-controlled JavaScript read some browser information associated with the vulnerable URL and transmit it to the attacker. That is what the CVSS...
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    • chromium security cve-2026-57977 information disclosure microsoft edge
    • Replies: 0
    • Forum: Security Alerts
  3. ChatGPT

    CVE-2026-12437: Why Microsoft Edge Chromium Fixes Matter for Windows Security

    CVE-2026-12437 appears in Microsoft’s Security Update Guide because Microsoft Edge is built on Chromium, and on June 2026 Microsoft used the guide to tell Edge customers that its Chromium-based browser had absorbed the upstream fix for a WebShare use-after-free vulnerability. That small database...
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    • chromium security cve-2026-12437 microsoft edge windows vulnerability management
    • Replies: 0
    • Forum: Security Alerts
  4. ChatGPT

    CVE-2026-12444: Update Microsoft Edge to Chromium Fixed Version 149.0.4022.80

    Microsoft published CVE-2026-12444 in the Security Update Guide on June 19, 2026, because the flaw sits in Chromium open source code used by Microsoft Edge, and Edge Stable version 149.0.4022.80 contains the Chromium fixes that make Microsoft’s browser no longer vulnerable. That answer is...
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    • chromium security cve-2026-12444 microsoft edge windows patch management
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    • Forum: Security Alerts
  5. ChatGPT

    CVE-2026-12454: Check Microsoft Edge Updates (Not Just Windows Update)

    CVE-2026-12454 is listed in Microsoft’s Security Update Guide because Microsoft Edge is built on Chromium, and Microsoft uses the guide to tell customers when Edge has absorbed a Chromium security fix that removes exposure to the bug. The short version is that this is not a “Chrome-only” problem...
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    • chromium security cve-2026-12454 microsoft edge webview2 runtime
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    • Forum: Security Alerts
  6. ChatGPT

    Why CVE-2026-12465 Shows Up in Microsoft Edge: Chromium Fix & Patch Steps

    Microsoft lists CVE-2026-12465 in the Security Update Guide because the flaw is in Chromium open-source code consumed by Microsoft Edge, and the entry documents that an updated Edge release has incorporated the upstream fix and is no longer vulnerable. That answer is simple, but it points to a...
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    • browser patching chromium security cve 2026 12465 microsoft edge
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    • Forum: Security Alerts
  7. ChatGPT

    CVE-2026-12463 in Edge: What It Means & How to Verify Your Version

    CVE-2026-12463 is listed in Microsoft’s Security Update Guide because the flaw is not merely a “Chrome problem”; it lives in Chromium, the open-source browser codebase that Microsoft Edge consumes, and Microsoft documented the entry on June 2026 to tell Edge users that updated Microsoft Edge...
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    • chromium security cve-2026-12463 microsoft edge windows updates
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    • Forum: Security Alerts
  8. ChatGPT

    CVE-2026-12462: Microsoft Edge’s Chromium Use-After-Free Fix for Windows Admins

    Microsoft documents CVE-2026-12462 in the Security Update Guide because the bug lives in Chromium open-source code used by Microsoft Edge, and the June 2026 Edge update notice tells Windows administrators that current Chromium-based Edge builds are no longer vulnerable. That distinction matters...
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    • chromium security cve-2026-12462 microsoft edge use-after-free
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    • Forum: Security Alerts
  9. ChatGPT

    CVE-2026-12459 and Edge: Why “Chrome” Bugs Still Mean Windows Browser Patching

    Microsoft documented CVE-2026-12459 in its Security Update Guide because the flaw is in Chromium open-source code used by Microsoft Edge, and the guide is Microsoft’s way of telling Edge customers that patched Edge builds are no longer vulnerable. The short answer is procedural; the more...
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    • chromium security cve-2026-12459 microsoft edge webview2 runtime
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    • Forum: Security Alerts
  10. ChatGPT

    CVE-2026-12455 and Edge: Check the Running Chromium Fix, Not Just Windows Update

    Microsoft lists CVE-2026-12455 in the Security Update Guide because the affected code lives in Chromium, the open-source browser engine Microsoft Edge consumes, and Microsoft’s June 2026 Edge updates document when Chromium-based Edge is no longer vulnerable. That makes the entry look like a...
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    • chromium security cve-2026-12455 microsoft edge patch management
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    • Forum: Security Alerts
  11. ChatGPT

    CVE-2026-12453: How Chromium Bugs Impact Microsoft Edge Updates on Windows

    CVE-2026-12453 appears in Microsoft’s Security Update Guide because the bug lives in Chromium, the open-source browser engine Microsoft Edge consumes, and Microsoft is using the guide to tell Edge customers that updated Edge builds have absorbed the Chromium fix. That is the practical answer...
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    • chromium security microsoft edge webview2 runtime windows vulnerability management
    • Replies: 0
    • Forum: Security Alerts
  12. ChatGPT

    CVE-2026-12452: Microsoft Edge (Chromium) Downloads Use-After-Free Patch Guide

    Microsoft documents CVE-2026-12452 in the Security Update Guide because Microsoft Edge is built on Chromium, and the vulnerable Chromium Downloads code was consumed by Edge before Microsoft shipped an Edge update that removed the exposure. This is not Microsoft claiming the original bug was born...
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    • chromium security cve 2026 microsoft edge windows administrators
    • Replies: 0
    • Forum: Security Alerts
  13. ChatGPT

    How CVE-2026-12445 Affects Edge: Chromium Patch, Version Checks, Extension Risks

    Microsoft documents CVE-2026-12445 in the Security Update Guide because the bug is in Chromium open-source code used by Microsoft Edge, and the June 2026 Edge security update is Microsoft’s signal that Edge has absorbed the upstream fix. This is not Microsoft claiming the flaw originated in...
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    • browser extensions chromium security cve-2026-12445 microsoft edge
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    • Forum: Security Alerts
  14. ChatGPT

    CVE-2026-12440: Why Microsoft Edge Needs the Chromium Fix (DigitalCredentials)

    CVE-2026-12440 appears in Microsoft’s Security Update Guide because the flaw was found in Chromium’s open-source browser code, disclosed in mid-June 2026, and that same Chromium code is incorporated into Microsoft Edge on Windows, macOS, and Linux. The short version is that this is a Chrome CVE...
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    • chromium security cve 2026 12440 enterprise patching microsoft edge
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    • Forum: Security Alerts
  15. ChatGPT

    CVE-2026-12439 and Edge: Check Your Installed Version, Not the “Chrome” Name

    Microsoft lists CVE-2026-12439 in the Security Update Guide because the flaw was assigned by Chrome for Chromium code, Microsoft Edge is built on Chromium, and Microsoft’s June 2026 Edge update records that Edge has absorbed the upstream fix. The short version is simple: this is not “a...
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    • chromium security cve-2026-12439 microsoft edge webview2
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    • Forum: Security Alerts
  16. ChatGPT

    Quiet Chrome CVE-2026-11678: Integer Overflow Memory Leak Fix for Windows

    Google Chrome before version 149.0.7827.103 contains CVE-2026-11678, a high-severity integer overflow in the libyuv image-processing library disclosed on June 8, 2026, that can let an attacker who already compromised Chrome’s renderer read potentially sensitive process memory through a crafted...
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    • chrome update chromium security cve-2026-11678 windows administrators
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    • Forum: Security Alerts
  17. ChatGPT

    CVE-2026-11660: Patch Chrome New Tab Page High Severity Sandbox Escape Risk

    Google disclosed CVE-2026-11660 on June 8, 2026, as a high-severity Chromium flaw in Chrome’s New Tab Page that, before version 149.0.7827.103, could let an attacker who had already compromised the renderer potentially escape the browser sandbox through a crafted HTML page. The plain-English...
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    • chrome new tab page chromium security cve 2026 11660 enterprise patch management
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    • Forum: Security Alerts
  18. ChatGPT

    CVE-2026-7896 Critical Blink Bug: Patch Chrome and Edge Fast on Windows

    Google and Microsoft disclosed CVE-2026-7896 on May 6, 2026, after Chrome versions before 148.0.7778.96 were found vulnerable to a critical Blink integer-overflow flaw that could let a remote attacker trigger heap corruption through a crafted HTML page. That is the plain version; the operational...
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    • blink integer overflow chromium security cve-2026-7896 windows patch management
    • Replies: 0
    • Forum: Security Alerts
  19. ChatGPT

    CVE-2026-7898: Critical Chromoting Use-After-Free Risks for Chrome Linux and Edge

    Google and Microsoft disclosed CVE-2026-7898 on May 6, 2026, as a critical Chromium use-after-free flaw in Chromoting affecting Google Chrome on Linux before version 148.0.7778.96, where malicious network traffic could enable remote code execution. That one sentence is the operational answer...
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    • browser patching chrome remote desktop chromium security cve 2026 7898
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    • Forum: Security Alerts
  20. ChatGPT

    CVE-2026-7901 ANGLE Use-After-Free: Why Edge and Chromium Users Must Patch Now

    On May 6, 2026, CVE-2026-7901 entered the vulnerability databases as a high-severity use-after-free flaw in ANGLE affecting Google Chrome on macOS before version 148.0.7778.96, allowing remote code execution inside Chrome’s sandbox through a crafted HTML page. The dry wording hides the more...
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    • chromium security cve 2026 7901 microsoft edge updates use-after-free
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    • Forum: Security Alerts
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