CVE-2000-0536: Xinetd

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

xinetd 2.1.8.x does not properly restrict connections if hostnames are used for access control and the connecting host does not have a reverse DNS entry.

Affected products

• Xinetd Xinetd: version 2.1.87 only; version 2.1.88 only; version 2.1.88_pre1 only; version 2.1.88_pre2 only; version 2.1.89_pre1 only; version 2.1.89_pre2 only; …

Published 2000-06-04. Last modified 2026-06-16.