Buffer overflow in Google Chromium - CVE-2026-11645
Published: June 9, 2026
Vulnerability identifier: #VU133930
CSH Severity: Critical
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:A/U:Red
CVE-ID: CVE-2026-11645
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Google
Affected software:
Google Chromium
Google Chromium
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in V8 engine 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.
Note, the vulnerability is being actively exploited in the wild.
How to mitigate CVE-2026-11645
Install update from vendor's website.