CVE-2001-0006: n/a vulnerability

CVE-2001-0006: The Winsock2ProtocolCatalogMutex mutex in Windows NT 4.0 has inappropriate Everyone/Full Control permission...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedDec 3, 2024, 15:43 UTC (UTC+00:00)

Security readout for executives and security teams

This is a local denial-of-service issue in Windows NT 4.0. A user already on the machine could abuse overly broad mutex permissions and disrupt Winsock network connectivity. It is mainly relevant to legacy or embedded NT systems still in service. Exposure is likely limited to organizations still running Windows NT 4.0, especially SP6 or earlier, including isolated legacy, industrial, lab, or embedded systems. Modern Windows versions are not identified as affected in the supplied sources. Treat this as a legacy-risk cleanup item, not a broad modern emergency. Prioritize if Windows NT systems support critical operations or network-dependent business processes, because a low-privileged local user could disrupt connectivity. Mitigation focus: Review Microsoft MS01-003 and apply the vendor-recommended update or configuration guidance.; Identify and retire or isolate remaining Windows NT 4.0 systems.; Restrict interactive and local user access on any affected legacy hosts..

Prepared: Jul 1, 2026, 09:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 7, 2001, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
MS01-003CVE reference · vendor-advisory, x_refsource_MS
winnt-mutex-dos(6006)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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