CVE-2005-4321: The Internet Key Exchange version 1 (IKEv1) implementation in Apani Networks EpiForce 1.9 and earlier runni...

Security readout for executives and security teams

CVE-2005-4321 is a denial-of-service issue in Apani Networks EpiForce 1.9 and earlier when running IPSec. A remote attacker could send certain IKEv1 traffic that crashes the product. The provided sources do not include a severity score, patch details, or evidence of active exploitation. Exposure is limited to organizations still running Apani Networks EpiForce 1.9 or earlier with IPSec/IKEv1 reachable. Internet-facing or broadly reachable VPN/IPSec endpoints would carry higher operational risk, but the source bundle does not identify affected platforms beyond the product description. Treat this as a legacy exposure and availability risk. It is not enough to justify emergency response without affected systems, but any exposed, unsupported EpiForce deployment should be removed, isolated, or upgraded as part of VPN risk reduction. Mitigation focus: Inventory Apani Networks EpiForce deployments and confirm version and IPSec use.; Check Apani or successor vendor guidance for fixed versions or mitigations.; Restrict IKE/IPSec exposure to trusted peers where operationally feasible..

Prepared

Jun 29, 2026, 15:49 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.