CVE-2009-1574: Ipsec-Tools

Medium severity, CVSS 5.0. EPSS: 11.6% chance of exploitation in the next 30 days.

racoon/isakmp_frag.c in ipsec-tools before 0.7.2 allows remote attackers to cause a denial of service (crash) via crafted fragmented packets without a payload, which triggers a NULL pointer dereference.

Affected products

• Ipsec-Tools Ipsec-Tools: up to and including 0.7.1; version 0.1 only; version 0.2 only; version 0.2.1 only; version 0.2.2 only; version 0.2.3 only; …

Published 2009-05-06. Last modified 2026-06-16.