CVE-2026-26119: Microsoft Windows Admin Center

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.

Affected products

• Microsoft Windows Admin Center: before 2511 (fixed in 2511)

Published 2026-02-17. Last modified 2026-06-17.