CVE-2008-4038: Microsoft Windows 2000

High severity, CVSS 10.0. EPSS: 39.2% chance of exploitation in the next 30 days.

Buffer underflow in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote attackers to execute arbitrary code via a Server Message Block (SMB) request that contains a filename with a crafted length, aka "SMB Buffer Underflow Vulnerability."

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version
• Microsoft Windows Vista: any version; version sp1 only
• Microsoft Windows XP: any version

Published 2008-10-15. Last modified 2026-06-16.