How severe is CVE-2026-11645?

CVE-2026-11645 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 2.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2026-11645: Google Chromium V8 Out-of-Bounds Read and Write

CISA Known Exploited Vulnerabilities

Google Chromium V8 Out-of-Bounds Read and Write Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2026-06-09

Remediation 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.

CISA notes
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

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)

Severity

CVSS 3.1 · CISA8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Google	Chrome	149.0.7827.103 to <149.0.7827.103

References

2 Links

Other references

Record Details

Published

2026-06-08

Last updated

2026-06-10

Assigner (CNA)

Chrome

Credited to

More from Google

CVE-2023-48638.8

Google Chromium WebP Heap-Based Buffer Overflow Vulnerability

CVE-2018-174638.8

Google Chromium V8 Remote Code Execution Vulnerability

CVE-2021-212248.8

Google Chromium V8 Type Confusion Vulnerability

CVE-2020-64188.8

Google Chromium V8 Type Confusion Vulnerability

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.