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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_nt | Microsoft | 4.0 | 4.0 |