Security readout for executives and security teams
A very old flaw in Windows NT 4.0 lets someone on a connected Token Ring network send malformed traffic that crashes the machine. It is a denial-of-service issue only; attackers cannot steal data or take control. The realistic business risk today is minimal because Windows NT 4.0 and Token Ring networks are effectively obsolete in modern enterprises. Exposure is limited to systems still running Windows NT 4.0 on Token Ring segments. Both technologies are long deprecated, so most modern environments have no attack surface. Any residual exposure would be in isolated legacy industrial, government, or archival systems that were never decommissioned. Low priority. This is a 1998-era denial-of-service flaw in Windows NT 4.0 over Token Ring. Address only if legacy NT 4.0 systems still exist in the environment; otherwise treat as historical. Mitigation focus: Retire remaining Windows NT 4.0 hosts and migrate workloads to a supported OS.; Decommission any surviving Token Ring segments in favor of modern Ethernet.; Review Microsoft KB Q179157 for the vendor's original guidance if a legacy host must persist..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-1999-1132 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
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Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
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