Windows
CVE-2026-20865
HIGH
Severity by source
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Management Services affects Windows 11 24H2, Windows Server 2022, and 2025 through a use-after-free memory vulnerability that allows authenticated local attackers to gain elevated system privileges. The vulnerability requires local access and manual user interaction is not required, making it exploitable by any authorized account on the system. Currently no patch is available to remediate this issue.
Technical ContextAI
Classified as CWE-416 (Use After Free). Affects the Windows Management component of Windows 10 1809. Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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