CVE-2005-0045: Microsoft Windows 2000

High severity, CVSS 7.5. EPSS: 70.3% chance of exploitation in the next 30 days.

The Server Message Block (SMB) implementation for Windows NT 4.0, 2000, XP, and Server 2003 does not properly validate certain SMB packets, which allows remote attackers to execute arbitrary code via Transaction responses containing (1) Trans or (2) Trans2 commands, aka the "Server Message Block Vulnerability," and as demonstrated using Trans2 FIND_FIRST2 responses with large file name length fields.

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows 2003 Server: version enterprise only; version enterprise_64-bit only; version r2 only; version standard only; version web only
• Microsoft Windows Nt: version 4.0 only
• Microsoft Windows XP: any version

Published 2005-05-02. Last modified 2026-06-16.