CVE-2004-0568: Microsoft Windows 2000

High severity, CVSS 10.0. EPSS: 35.3% chance of exploitation in the next 30 days.

HyperTerminal application for Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 does not properly validate the length of a value that is saved in a session file, which allows remote attackers to execute arbitrary code via a malicious HyperTerminal session file (.ht), web site, or Telnet URL contained in an e-mail message, triggering a buffer overflow.

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows 2003 Server: version datacenter_64-bit only; 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 2005-01-10. Last modified 2026-06-16.