CVE-2011-3406: Microsoft Windows 7

High severity, CVSS 8.8. EPSS: 23.1% chance of exploitation in the next 30 days.

Buffer overflow in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote authenticated users to execute arbitrary code via a crafted query that leverages incorrect memory initialization, aka "Active Directory Buffer Overflow Vulnerability."

Affected products

• Microsoft Windows 7: affected versions not specified
• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version; version r2 only
• Microsoft Windows Vista: any version
• Microsoft Windows XP: any version; affected versions not specified

Published 2011-12-14. Last modified 2026-06-16.