Buffer overflow in Google Chromium - CVE-2026-3920

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Main Vulnerability Database Vulnerabilities #VU123921

Buffer overflow in Google Chromium - CVE-2026-3920

Published: March 12, 2026


Vulnerability identifier: #VU123921
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-2026-3920
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to a boundary error in WebML in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.


Affected software

Google Chromium
Microsoft Edge
Google Chrome
Debian Linux
Fedora
cef
chromium
chromium (Debian package)

How to mitigate CVE-2026-3920

Install update from vendor's website.

Google Chromium - update to 146.0.7680.71
Microsoft Edge - update to 146.0.3856.59
Google Chrome - update to 146.0.7680.71
cef - addressed in versions 146.0.9^chromium146.0.7680.164-1.fc42, 146.0.9^chromium146.0.7680.164-1.fc43, 146.0.9^chromium146.0.7680.164-1.fc44
chromium - addressed in versions 146.0.7680.71-1.el9, 146.0.7680.71-1.el10_1, 146.0.7680.71-1.el10_3, 146.0.7680.71-1.fc42, 146.0.7680.71-1.fc43, 146.0.7680.71-1.fc44, 146.0.7680.80-1.el9
chromium (Debian package) - addressed in versions 146.0.7680.71-1~deb12u1, 146.0.7680.71-1~deb13u1

External References

Related Security Bulletins