← Back to feedVulnerabilities & PatchesEmerging1 sourceSep 25, 2026 · 14:00via Microsoft Security Update GuideCVE-2026-85921 Windows Secure Kernel Mode Elevation of Privilege VulnerabilityBriefUpdated an acknowledgement. This is an informational change only.Read more on Microsoft Security Update Guide→Vulnerabilities & PatchesCVE-2026-85921Related stories