CVE-2026-85921

Windows Secure Kernel Mode Elevation of Privilege Vulnerability

Published Sep 14, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
Double free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft windows 11 26h1
CPEs cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft windows 11 26h1
Type Values Removed Values Added
Description Double free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
Title Windows Secure Kernel Mode Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 26h1
Weaknesses CWE-415
CPEs cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft windows 11 26h1
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 9:33 PM
Reserved
Sep 4, 2026, 6:24 PM
Status
Analyzed
Published
Sep 14, 2026, 6:20 PM
Modified
Sep 29, 2026, 7:24 PM