CVE-2004-1080: Microsoft Windows 2000

High severity, CVSS 10.0. EPSS: 79.8% chance of exploitation in the next 30 days.

The WINS service (wins.exe) on Microsoft Windows NT Server 4.0, Windows 2000 Server, and Windows Server 2003 allows remote attackers to write to arbitrary memory locations and possibly execute arbitrary code via a modified memory pointer in a WINS replication packet to TCP port 42, aka the "Association Context Vulnerability."

Affected products

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

Published 2005-01-10. Last modified 2026-06-16.