CVE-2025-47978: Microsoft Windows Server 2022

Medium severity, CVSS 6.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.

Affected products

• Microsoft Windows Server 2022: before 10.0.20348.3932 (fixed in 10.0.20348.3932)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1732 (fixed in 10.0.25398.1732)
• Microsoft Windows Server 2025: before 10.0.26100.4652 (fixed in 10.0.26100.4652)

Published 2025-07-08. Last modified 2026-06-17.