CVE-2025-50163: Microsoft Windows Server 2008

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.8330 (fixed in 10.0.14393.8330)
• Microsoft Windows Server 2019: before 10.0.17763.7678 (fixed in 10.0.17763.7678)
• 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.