CVE-1999-0418

Medium severity, CVSS 6.4. EPSS: 2% chance of exploitation in the next 30 days.

Denial of service in SMTP applications such as Sendmail, when a remote attacker (e.g. spammer) uses many "RCPT TO" commands in the same connection.

Published 1999-03-08. Last modified 2026-06-16.