CVE intelligenceCISA KEV

CVE-2026-11645

Google Chromium V8 Out-of-Bounds Read and Write Vulnerability

Published Jun 9, 2026Sources checked Nov 12, 2026

8.8HIGHCVSS out of 10

What this means

Actively exploited

CISA lists CVE-2026-11645 in its Known Exploited Vulnerabilities catalog, which means exploitation has been observed. The entry applies to Google Chromium V8.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Jun 15, 2026

Release Notes

Vendor-listed releases

149.0.4022.62

CISA KEVListedObserved exploitation

EPSS2.4%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-11645?

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)

Source: NVD

CISA says:Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.CISA catalog due date Jun 23, 2026