CVE-2011-0039: Microsoft Windows 2003 Server

High severity, CVSS 7.2. EPSS: 1.9% chance of exploitation in the next 30 days.

The Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly process authentication requests, which allows local users to gain privileges via a request with a crafted length, aka "LSASS Length Validation Vulnerability."

Affected products

• Microsoft Windows 2003 Server: any version
• Microsoft Windows XP: any version; affected versions not specified

Published 2011-02-09. Last modified 2026-06-16.