CVE-2003-0093: Lbl Tcpdump

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

The RADIUS decoder in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service (crash) via an invalid RADIUS packet with a header length field of 0, which causes tcpdump to generate data within an infinite loop.

Affected products

• Lbl Tcpdump: version 3.4 only; version 3.4a6 only; version 3.5 only; version 3.5.2 only; version 3.6.2 only

Published 2003-03-03. Last modified 2026-06-16.