CVE-2026-50751 is a critical authentication bypass in Check Point Security Gateway’s deprecated IKEv1 VPN protocol implementation, with CVSS 9.8 and confirmed active exploitation per Check Point’s own emergency advisory and Rapid7’s Exploitation Threat Report. An unauthenticated remote attacker can bypass VPN access controls entirely, gaining unauthorized network access to internal environments. Check Point has released an emergency hotfix; organizations must apply it and disable IKEv1 immediately.