Qilin ransomware affiliate exploited Check Point VPN zero-day (CVE-2026-50751) A Qilin ransomware affiliate is believed to be exploiting CVE-2026-50751, an authentication bypass vulnerability in Check Point VPN Remote Access and Mobile Access, the company announced on Monday. About CVE-2026-50751 Check Point Remote Access VPN enables and secures connections between corporate networks and remote or mobile devices. Check Point Mobile Access lets mobile and remote workers connect securely to email, calendar, contacts, and corporate applications. CVE-2026-50751 affects both blades (i.e., functions on Check Point Security Gateways), but only if they are configured to use the deprecated IKEv1 key exchange protocol. It also affects Check Point’s AI-powered Spark firewalls, which are intended for…