GCVE-110-NCSC-2026-9

Advisory PublishedCVSS 7.5/10

Vulnetix · Advisory published January 13, 2026

A vulnerability in Windows Admin Center allows an authorized attacker to improperly verify cryptographic signatures, enabling local privilege escalation.

Download JSON Open in Console

Weaknesses (CWE)

CWE-347Improper Verification of Cryptographic SignatureCWE-121Stack-based Buffer OverflowCWE-502Deserialization of Untrusted Data

Risk Scores

CVSS 3.1

7.5/10

High · CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

Vendor	Product	Versions	Platforms
Microsoft	vers:unknown/*	—	—

Aliases

CVE-2026-20965 CVE-2026-21224 CVE-2026-21226

References

advisory

Explore Further

Investigate this vulnerability in the interactive console or download the raw GCVE record.

Open in Console Download JSON