CVE-2025-50171: Microsoft Windows Server 2022

Critical severity, CVSS 9.1. EPSS: 1% chance of exploitation in the next 30 days.

Missing authorization in Remote Desktop Server allows an unauthorized attacker to perform spoofing over a network.

Affected products

• Microsoft Windows Server 2022: before 10.0.20348.3989 (fixed in 10.0.20348.3989)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1791 (fixed in 10.0.25398.1791)
• Microsoft Windows Server 2025: before 10.0.26100.4851 (fixed in 10.0.26100.4851)

Published 2025-08-12. Last modified 2026-06-17.