Spoofing attack in Google Chromium - CVE-2025-12435

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Main Vulnerability Database Vulnerabilities #VU117821

Spoofing attack in Google Chromium - CVE-2025-12435

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


Vulnerability identifier: #VU117821
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-12435
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to insufficient validation of user-supplied input in Omnibox in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and spoof web page content.


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-2025-12435

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