CVE-2026-11645: Chromium: CVE-2026-11645 Out of bounds memory access in V8
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
CSIRTS triage
- What
- The vulnerability involves out-of-bounds memory access in V8, which could lead to exploitation.
- Who is affected
- Users of Microsoft Edge (Chromium-based) and other browsers utilizing Chromium.
- Urgency
- Remediation is important due to the unknown severity and active exploitation status.
- Action
- Ensure Microsoft Edge is updated to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11645
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2026-11645Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 74% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-11645 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- criticalexploitedCVE-2026-11645: Google Chromium V8 Out-of-Bounds Read and Write Vulnerabilitycisa-kev
Recent advisories for Chromium
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-15133: Use after free in InterestGroups in Google Chrome prior to 150.0.7871.115 allowed a remote att…nvd · 2026-07-08
- highCVE-2026-15132: Uninitialized Use in V8 in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to …nvd · 2026-07-08
- mediumCVE-2026-15131: Inappropriate implementation in Navigation in Google Chrome prior to 150.0.7871.115 allowed a …nvd · 2026-07-08
- mediumCVE-2026-15130: Insufficient policy enforcement in Navigation in Google Chrome prior to 150.0.7871.115 allowed…nvd · 2026-07-08
- highCVE-2026-15129: Use after free in Views in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to …nvd · 2026-07-08
- highCVE-2026-15126: Use after free in Forms in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to …nvd · 2026-07-08
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