CVE-2007-4205: Linux-Ha Heartbeat

High severity, CVSS 7.1. EPSS: 2.5% chance of exploitation in the next 30 days.

XHA (Linux-HA) on the BlueCat Networks Adonis DNS/DHCP Appliance 5.0.2.8 allows remote attackers to cause a denial of service (heartbeat control process crash) via a UDP packet to port 694. NOTE: this may be the same as CVE-2006-3121.

Affected products

• Linux-Ha Heartbeat: up to and including 1.2.4

Published 2007-08-08. Last modified 2026-06-16.