CVE-2026-42834: Microsoft Windows Admin Center

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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

Affected products

• Microsoft Windows Admin Center: before 0.72.0.0 (fixed in 0.72.0.0)

Published 2026-05-20. Last modified 2026-07-23.