Use of Uninitialized Variable in Google Chrome - CVE-2026-9921

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Main Vulnerability Database Vulnerabilities #VU132942

Use of Uninitialized Variable in Google Chrome - CVE-2026-9921

Published: May 29, 2026


Vulnerability identifier: #VU132942
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2026-9921
CWE-ID: CWE-457
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Google
Affected software:
Google Chrome

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to use of an uninitialized variable in WebGL. A remote attacker can trick the victim into visiting a specially crafted website and execute arbitrary code on the system.


How to mitigate CVE-2026-9921

Install updates from vendor's website.

Sources