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CVE-2026-11054: Chromium: CVE-2026-11054 Use after free in WebRTC

unknownCVE-2026-11054
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

vendor: Googleproduct: ChromiumOther
What
There is a use after free vulnerability in WebRTC.
Who is affected
Users of Microsoft Edge (Chromium-based) that use WebRTC.
Urgency
Remediation is necessary as the vulnerability could potentially be exploited, although it is not currently known to be exploited.
Action
Update to the latest version of Chromium or Microsoft Edge.

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

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
unknown
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11054

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-11054coverage & exploitation statusNVD · CVE.org

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.

More from Microsoft Security Response Center