CVE-2002-0906: Sendmail

High severity, CVSS 7.5. EPSS: 4.4% chance of exploitation in the next 30 days.

Buffer overflow in Sendmail before 8.12.5, when configured to use a custom DNS map to query TXT records, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a malicious DNS server.

Affected products

• Sendmail Sendmail: version 8.12.0 only; version 8.12.1 only; version 8.12.3 only; version 8.12.4 only

Published 2002-10-04. Last modified 2026-06-16.