Google Chromium Out of Bounds Memory Access Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-12-12
• EPSS: 22% chance of exploitation in the next 30 days (higher than 98% of CVEs)

[ Description ]Official description

Out of bounds memory access in ANGLE in Google Chrome on Mac prior to 143.0.7499.110 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

CISA: Google Chromium contains an out of bounds memory access vulnerability in ANGLE that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 2 Jan 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop_10.htmlRelease Notes
• issues.chromium.org/issues/466192044Permissions Required
• learn.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-securityThird Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogThird Party Advisory