Security readout for executives and security teams
A flaw in Sendmail 8.10.x's mail.local delivery program lets a remote sender crash mail delivery or corrupt user mailboxes by sending a specially crafted email line. The impact is disruption of email service and potential loss of stored mail, not data theft. It is a legacy issue from 2000 that only matters if very old Sendmail versions still run somewhere in the estate. Very limited in 2026. Exposure requires an internet-reachable mail host still running Sendmail 8.10.x with mail.local as the local delivery agent. Modern mail environments (Postfix, Exchange, cloud email, or supported Sendmail branches) are not affected. Legacy Unix systems, air-gapped labs, or unmanaged appliances embedding old Sendmail are the realistic residual exposure. Low priority. Treat as legacy hygiene: confirm no Sendmail 8.10.x is still in production, then close. Only escalate if inventory surfaces an unpatched legacy mail host handling business email, in which case retire or upgrade it as part of normal lifecycle work. Mitigation focus: Upgrade any Sendmail 8.10.x instance to a currently supported Sendmail release or a supported MTA.; Replace mail.local with a modern local delivery agent (for example, procmail or maildrop) where feasible.; Restrict inbound SMTP to trusted relays and enforce line-length limits at the perimeter mail gateway..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CVE-2000-0319 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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