Improperly implemented security check for standard in Google Chromium - CVE-2025-12429

Vulnerability identifier: #VU117815

CSH Severity: Medium

CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-12429

CWE-ID: CWE-358

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incorrect implementation in V8 in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.

Google Chromium
Microsoft Edge
Google Chrome
Prisma Access Browser
Debian Linux
Fedora
Chrome OS
cef
chromium
chromium (Debian package)

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
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
chromium (Debian package) - addressed in versions 142.0.7444.59-1~deb12u1, 142.0.7444.59-1~deb13u1
Chrome OS - update to 142.0.7444.147
Prisma Access Browser - update to 142.15.6.60

• https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html
• https://crbug.com/450618029

• Multiple vulnerabilities in Google Chrome
• Debian update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Fedora 42 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora EPEL 10.2 update for chromium
• Fedora 41 update for chromium
• Fedora 43 update for chromium
• Multiple vulnerabilities in Google ChromeOS
• Multiple vulnerabilities in Prisma Access Browser
• Fedora 42 update for cef
• Fedora 43 update for cef