CVE-2012-2551: Microsoft Windows 7

Medium severity, CVSS 5.0. EPSS: 27.5% chance of exploitation in the next 30 days.

The server in Kerberos in Microsoft Windows Server 2008 R2 and R2 SP1, and Windows 7 Gold and SP1, allows remote attackers to cause a denial of service (NULL pointer dereference and reboot) via a crafted session request, aka "Kerberos NULL Dereference Vulnerability."

Affected products

• Microsoft Windows 7: any version
• Microsoft Windows Server 2008: any version

Published 2012-10-09. Last modified 2026-06-16.