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    CVE-2001-0006

    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.

    Published:Feb 12, 2001
    Last Modified:Apr 16, 2026
    EPS:May 7, 2001
    EPSS Score:0.00128
    CVSS Score:7.1

    Affected Products

    Vendor
    Microsoft
    Product
    Windows Nt

    Exploits

    https://www.exploit-db.com/exploits/20596

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High