Security readout for executives and security teams
This is a very old IIS FTP flaw where an overly long directory listing request can crash the FTP service. The source describes denial of service, not data theft or code execution. Business urgency is mainly for organizations that still operate IIS 3.0 or 4.0 FTP, especially if reachable over a network. Likely exposure is limited to legacy Microsoft IIS 3.0 or 4.0 FTP services. Modern environments are unlikely to be affected unless old servers, embedded systems, or forgotten migration remnants are still running IIS FTP. Treat this as a legacy exposure cleanup item. It is not supported by evidence of active exploitation, but any remaining IIS 3.0 or 4.0 FTP service is operationally risky and should be retired or tightly isolated. Mitigation focus: Identify any IIS 3.0 or 4.0 FTP services still in use.; Retire or replace unsupported IIS FTP servers where possible.; Restrict FTP exposure to trusted networks if immediate retirement is not possible..
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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ATT&CK lookup starting points
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CVE-1999-1544 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
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
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