CVE-2005-4465: Nec Univerge

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

The Internet Key Exchange version 1 (IKEv1) implementation in NEC UNIVERGE IX1000, IX2000, and IX3000 allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

Affected products

• Nec Univerge: version ix1010 only; version ix1011 only; version ix1020 only; version ix1050 only; version ix2003 only; version ix2004 only; …

Published 2005-12-22. Last modified 2026-06-16.