What’s Vulnerable › Vulnerabilities

CVE-2001-0006

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2001-05-07 · updated 2026-06-16
• Weakness: CWE-732

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.

Affected products

• Microsoft Windows Nt: 4.0

References

• http://marc.info/?l=bugtraq&m=98075221915234&w=2
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-003
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6006
• http://marc.info/?l=bugtraq&m=98075221915234&w=2
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-003
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6006

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