Security readout for executives and security teams
A very old flaw in Imate Webmail Server 2.5 lets a remote attacker crash the mail service by sending an oversized HELO command. The impact is a denial of service — mail delivery stops until the service is restarted. There is no data theft described. Business risk today is minimal unless this legacy product is still running somewhere in the environment. Exposure is limited to hosts still running Imate Webmail Server 2.5 with the SMTP port reachable from untrusted networks. This product is obsolete and unlikely to appear in modern estates; any lingering instances would most plausibly be found on unmanaged legacy Windows servers. Low priority. This is a 25-year-old denial-of-service bug in an obsolete webmail product with no KEV listing and no cited active exploitation. Treat as a legacy-hygiene item — confirm the product is not in use, and if it is, plan replacement. Mitigation focus: Inventory mail infrastructure for any surviving Imate Webmail Server 2.5 instances.; Decommission the legacy product and migrate to a supported mail server.; If retention is unavoidable, restrict SMTP access to trusted networks via firewall..
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-2000-0507 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
- nt-webmail-dos(4586)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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