CVE-2001-0003: n/a vulnerability

CVE-2001-0003: Web Extender Client (WEC) in Microsoft Office 2000, Windows 2000, and Windows Me does not properly process...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 04:06 UTC (UTC+00:00)

Security readout for executives and security teams

This old Microsoft issue can cause affected systems to send NTLM credentials despite Internet Explorer security settings. An attacker could capture those credentials and possibly recover a password. The main business risk is legacy exposure, not modern Windows by default. Exposure is most likely in legacy environments still running Office 2000, Windows 2000, or Windows Me with Web Extender Client components. Modern environments are mainly at risk through forgotten systems, lab machines, embedded legacy workflows, or unmanaged archives. Treat this as a legacy risk cleanup item unless affected systems still exist. If they do, prioritize removal or isolation because credential theft can create broader domain or account compromise risk. Mitigation focus: Inventory for Office 2000, Windows 2000, and Windows Me systems.; Review Microsoft MS01-001 for vendor-confirmed fixes or configuration guidance.; Retire or isolate affected legacy hosts where replacement is not immediate..

Prepared: Jul 1, 2026, 09:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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cve · low confidence lookup

CVE-2001-0003 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 7, 2001, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
wec-ntlm-authentication(5920)CVE reference · vdb-entry, x_refsource_XF
MS01-001CVE reference · vendor-advisory, x_refsource_MS

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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