Security readout for executives and security teams
A very old flaw in the IMP webmail application let a logged-in user waste all available disk space by repeatedly asking to view Word documents and cancelling the request before finishing. Because temporary files were not cleaned up, the server's storage could fill until the service stopped working. This is a local denial-of-service issue on an obsolete product, with no data theft implication. Extremely limited in 2026. IMP 2.x from ~2000 is long superseded by later Horde/IMP releases. Exposure exists only on unmaintained legacy mail hosts still running that generation of IMP with MSWordView integration and local shell or authenticated webmail access. Very low priority for modern environments. Treat as informational unless legacy IMP 2.x is still in use, in which case prioritize decommissioning rather than patching. Mitigation focus: Retire any IMP 2.x deployments and migrate to a currently supported webmail platform.; If legacy IMP must remain, disable MSWordView attachment rendering.; Enforce disk quotas and separate partitions for webmail temporary directories..
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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CVE-2000-0459 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
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- 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
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CWE details
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