CVE-2026-11645
Published 2026-06-09 · Updated 2026-07-23 · Source chrome-cve-admin@google.com
Summary
CVE-2026-11645 is a high-severity (CVSS 8.8) vulnerability in Google Chromium V8. CISA added it to the Known Exploited Vulnerabilities catalog on June 9, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 23, 2026. CISA does not currently list it as used in ransomware campaigns. Google has 76 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 76 known-exploited Google vulnerabilities →Description
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Google — Chromium V8
Name: Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
Date added: 2026-06-09 · Due: 2026-06-23
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

