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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-11645

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

KEVHIGH 8.8EPSS 2.44%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 23 June 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
2.44% probability · 84th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 9 June 2026 · due 23 June 2026
Weakness
CWE-125, CWE-787
Affected
google/chrome
Source
chrome-cve-admin@google.com
EPSS trend
0%3%5%26 October 2026: 2.44%26 October 202626 October 2026

EPSS 2.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html ; https://issues.chromium.org/issues/506689381 ; https://nvd.nist.gov/vuln/detail/CVE-2026-11645

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.