Windows
CVE-2026-20965
HIGH
Severity by source
AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.
AnalysisAI
Windows Admin Center fails to properly validate cryptographic signatures, enabling high-privileged users to bypass security controls and gain elevated system access on local machines. This vulnerability affects both Windows and Windows Admin Center installations and requires an authenticated attacker with administrative credentials to exploit. No patch is currently available for this issue.
Technical ContextAI
Classified as CWE-347 (Improper Verification of Cryptographic Signature). Affects Windows Admin Center. Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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External POC / Exploit Code
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