Protection Mechanism Failure in Google Chromium - CVE-2025-12445

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Main Vulnerability Database Vulnerabilities #VU117830

Protection Mechanism Failure in Google Chromium - CVE-2025-12445

Published: October 28, 2025 / Updated: November 12, 2025


Vulnerability identifier: #VU117830
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-12445
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient implementation of security measures in Extensions. A remote attacker can bypass implemented security restrictions.


Affected software

Google Chromium
Microsoft Edge
Google Chrome
Prisma Access Browser
Gentoo Linux
Debian Linux
Fedora
Chrome OS
cef
chromium
www-client/vivaldi
www-client/opera
www-client/microsoft-edge
www-client/google-chrome
www-client/chromium
chromium (Debian package)

How to mitigate CVE-2025-12445

Install update from vendor's repository.

Google Chromium - update to 142.0.7444.59
Microsoft Edge - update to 142.0.3595.53
Google Chrome - update to 142.0.7444.59
cef - addressed in versions 142.0.10^chromium142.0.7444.162-2.fc42, 142.0.10^chromium142.0.7444.162-2.fc43
chromium - addressed in versions 142.0.7444.59-1.el9, 142.0.7444.59-1.el10_2, 142.0.7444.59-1.fc41, 142.0.7444.59-1.fc42, 142.0.7444.59-1.fc43
Chrome OS - update to 142.0.7444.147
Prisma Access Browser - update to 142.15.6.60
www-client/vivaldi - update to 7.7.3851.48
www-client/opera - update to 126.0.5744.0
www-client/microsoft-edge - update to 142.0.3595.53
www-client/google-chrome - update to 142.0.7444.59
www-client/chromium - update to 142.0.7444.134
chromium (Debian package) - addressed in versions 142.0.7444.59-1~deb12u1, 142.0.7444.59-1~deb13u1

External References

Related Security Bulletins