CVE-2004-0218: OpenBSD

Medium severity, CVSS 5.0. EPSS: 3.2% chance of exploitation in the next 30 days.

isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service (infinite loop) via an ISAKMP packet with a zero-length payload, as demonstrated by the Striker ISAKMP Protocol Test Suite.

Affected products

• OpenBSD OpenBSD: up to and including 3.4

Published 2004-05-04. Last modified 2026-06-16.