CVE-2005-3672: Stonesoft Stonegate Firewall

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

The Internet Key Exchange version 1 (IKEv1) implementation in Stonesoft StoneGate Firewall before 2.6.1 allows remote attackers to cause a denial of service via certain crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the Stonesoft advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

Affected products

• Stonesoft Stonegate Firewall: up to and including 2.6.0

Published 2005-11-18. Last modified 2026-06-16.