Race condition in Google Chromium - CVE-2025-12434

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Main Vulnerability Database Vulnerabilities #VU117820

Race condition in Google Chromium - CVE-2025-12434

Published: October 28, 2025 / Updated: October 30, 2025


Vulnerability identifier: #VU117820
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-12434
CWE-ID: CWE-362
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 a race condition in Storage in Google Chrome. A remote attacker can trick the victim to open a specially crafted web page and bypass implemented security restrictions.


Affected software

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

How to mitigate CVE-2025-12434

Install update from vendor's website.

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

External References

Related Security Bulletins