CVE-2026-11643

unknowncovered by 1 sourcefirst seen 2026-06-09

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: This vulnerability is a use after free in Proxy.
Who is affected: Microsoft Edge (Chromium-based) users are affected.
Urgency: Remediation is necessary as it could lead to potential exploitation, although it is not currently exploited.
Action: Update to the latest version of Microsoft Edge to mitigate this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-11643: Chromium: CVE-2026-11643 Use after free in Proxymsrc · 2026-06-09

External references

NVD record for CVE-2026-11643

CVE.org record

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