Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
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)
What happened
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)
CISA lists it as exploited, added 09 Jun 2026.
Does it affect you
Names Google Chrome. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
chromereleases.googleblog.com - 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.gov
CISA’s notes for this entry:
Affected, as published to NVD
- chrome
- Google Chrome: everything below 149.0.7827.103
The record
- NVD status
- Analyzed
- Published
- 09 Jun 2026, last modified 23 Jul 2026 (NVD)
- Severity
- CVSS 3.1 base score 8.8, High — computed here from the vector; NVD states 8.8.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness
- CWE-125 Out-of-bounds Read, CWE-787 Out-of-bounds Write (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 09 Jun 2026; federal remediation due 23 Jun 2026. CISA entry
- Exploit probability
- EPSS 2.4%, 84th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Google · Chromium V8 (CISA)
References on the NVD record
- chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.htmlRelease NotesVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-11645US Government Resource
- issues.chromium.org/issues/506689381Permissions Required
Reporting that names this identifier
- Chrome V8 Zero-Day CVE-2026-11645 Exploited in the Wild - Patch Now — The Hacker News, 5 mo ago
- Google Patches 5th Chrome Zero-Day Exploited in 2026 — SecurityWeek, 5 mo ago
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.