CVE-2003-0039: ISC Dhcpd

Medium severity, CVSS 5.0. EPSS: 8% chance of exploitation in the next 30 days.

ISC dhcrelay (dhcp-relay) 3.0rc9 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (packet storm) via a certain BOOTP packet that is forwarded to a broadcast MAC address, causing an infinite loop that is not restricted by a hop count.

Affected products

• ISC Dhcpd: version 3.0.1 only

Published 2003-02-07. Last modified 2026-06-16.