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Vulnerability record · CVE-2001-0003 · published 12 February 2001

CVE-2001-0003: Microsoft office vulnerability

Microsoft · Office

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.

5.0 CVSS 2.0 Medium EPSS 7.4% · top 5.8%
5.0CVSS 2.0 base score
7.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/2199 PatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-001
https://exchange.xforce.ibmcloud.com/vulnerabilities/5920
http://www.securityfocus.com/bid/2199 PatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-001
https://exchange.xforce.ibmcloud.com/vulnerabilities/5920

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2001-0003), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.