CVE-2001-0003: Microsoft Office

Medium severity, CVSS 5.0. EPSS: 7.4% chance of exploitation in the next 30 days.

Web Extender Client (WEC) in Microsoft Office 2000, Windows 2000, and Windows Me does not properly process Internet Explorer security settings for NTLM authentication, which allows attackers to obtain NTLM credentials and possibly obtain the password, aka the "Web Client NTLM Authentication" vulnerability.

Affected products

• Microsoft Office: version 2000 only
• Microsoft Windows 2000: any version
• Microsoft Windows Me: any version
• Microsoft Windows Nt: any version

Published 2001-02-12. Last modified 2026-06-16.