What is CVE-2026-20965?

CVE-2026-20965 is a high-severity vulnerability in Microsoft Windows Admin Center In Azure Portal, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2026-01-13.

How severe is CVE-2026-20965?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Microsoft Windows Admin Center In Azure Portal

CVE-2026-20965

Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.

EPSS: 0.000 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: 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

Microsoft Windows Admin Center In Azure Portal — versions 1.0

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

Windows Admin Center Elevation of Privilege Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-20965?: CVE-2026-20965 is a high-severity vulnerability in Microsoft Windows Admin Center In Azure Portal, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2026-01-13.
How severe is CVE-2026-20965?: High severity. CVSS v3 base score is 7.5 out of 10.