Improper Verification of Cryptographic Signature in Windows Admin Center in Azure Portal - CVE-2026-20965
Published: January 13, 2026 / Updated: May 21, 2026
Vulnerability identifier: #VU121346
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20965
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Admin Center in Azure Portal
Windows Admin Center in Azure Portal
Detailed vulnerability description
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to the lack of proper verification of a cryptographic signature in Windows Admin Center. A local administrator can gain elevated privileges on the system.
How to mitigate CVE-2026-20965
Install updates from vendor's website.