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CVE-2026-85921: Windows Secure Kernel Mode Elevation of Privilege Vulnerability

highCVSS 8.2CVE-2026-85921
Double free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.2
Published
2026-09-08
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85921

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-85921coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.