Critical Authentication Bypass Vulnerability (CVE-2025-59718) Exploited in Fully Patched FortiGate Firewalls
FortinetFortiGateFortiOSCVE-2025-59718authentication_bypassvulnerabilitycybersecurityexploitpatch_managementzero_day
CVE-2025-59718 is a critical authentication bypass vulnerability that attackers exploited in December 2025 to compromise FortiGate appliances. According to the post, this vulnerability appears to persist in newer versions of FortiOS that are supposed to be patched.