CVE-2001-0006

Name: CVE-2001-0006
Creator: NVD / NIST
Published: 2001-02-12T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 3.00%

Last modified Jun 16, 2026

CVE-2001-0006 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. The Winsock2ProtocolCatalogMutex mutex in Windows NT 4.0 has inappropriate Everyone/Full Control permissions, which allows local users to modify the permissions to "No Access" and disable Winsock network connectivity to cause a denial of service, aka the "Winsock Mutex" vulnerability.. EPSS estimates a 3.00% chance of exploitation in the next 30 days.

Description

The Winsock2ProtocolCatalogMutex mutex in Windows NT 4.0 has inappropriate Everyone/Full Control permissions, which allows local users to modify the permissions to "No Access" and disable Winsock network connectivity to cause a denial of service, aka the "Winsock Mutex" vulnerability.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

3.00%

85.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions
Microsoft	Windows Nt	4.0

References

http://marc.info/?l=bugtraq&m=98075221915234&w=2Mailing List
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-003Patch, Release Notes, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6006Third Party Advisory, VDB Entry
http://marc.info/?l=bugtraq&m=98075221915234&w=2Mailing List
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-003Patch, Release Notes, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6006Third Party Advisory, VDB Entry

Timeline

Published: Feb 12, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-0006?

How severe is CVE-2001-0006?

CVE-2001-0006 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 3.00% probability of exploitation in the next 30 days.

How do I fix CVE-2001-0006?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2001-0006?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST