CVE-2006-7176: Sendmail

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

The version of Sendmail 8.13.1-2 on Red Hat Enterprise Linux 4 Update 4 and earlier does not reject the "localhost.localdomain" domain name for e-mail messages that come from external hosts, which might allow remote attackers to spoof messages.

Affected products

• Sendmail Sendmail: version 8.13.1.2 only

Published 2007-03-27. Last modified 2026-06-16.