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CVE-2026-10997: Chromium: CVE-2026-10997 Insufficient policy enforcement in Extensions

unknownCVE-2026-10997
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
This vulnerability involves insufficient policy enforcement in Extensions.
Who is affected
Microsoft Edge (Chromium-based) users are affected.
Urgency
Remediation is necessary as it could lead to potential exploitation, although the severity is currently unknown.
Action
Users should update to the latest version of 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-2026-10997

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-2026-10997coverage & 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