CVE-2003-0450: Cistron Radius Daemon

High severity, CVSS 7.5. EPSS: 4.2% chance of exploitation in the next 30 days.

Cistron RADIUS daemon (radiusd-cistron) 1.6.6 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large value in an NAS-Port attribute, which is interpreted as a negative number and causes a buffer overflow.

Affected products

• Cistron Radius Daemon: up to and including 1.6.6

Published 2003-08-07. Last modified 2026-06-16.