CVE-2001-0006 — HIGH severity vulnerability (The Winsock2ProtocolCatalogMutex mutex in Windows NT 4.0 has)
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.
| CVE ID | CVE-2001-0006 |
|---|---|
| Severity | HIGH |
| CVSS score | 7.1 |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| CWE | CWE-732 |
| Status | Modified |
| Published | 2001-02-12 |
| Last modified | 2026-04-16 |
| 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. |
| Source | NIST National Vulnerability Database |
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