Google Chromium V8 Out-of-Bounds Read and Write
What to do
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 deadline 2026-06-23 · passed 2 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Who is affected
Google Chromium V8. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-787, CWE-125.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 months ago
Sources
- NVD entry for CVE-2026-11645 nvd.nist.gov/vuln/detail/CVE-2026-11645
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- chromereleases.googleblog.com chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html
- issues.chromium.org issues.chromium.org/issues/506689381
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-11645