FGT_400D-v6-build1234-FORTINET.out.zip: FortiGate 400D Firmware v6.4 Build 1234 Security Update
Introduction to FGT_400D-v6-build1234-FORTINET.out.zip This firmware package delivers critical security patches and system optimizations for FortiGate 400D next-generation firewalls operating on FortiOS v6.4. Released under Fortinet’s Q2 2025 security advisory cycle (FG-IR-25-1234), it resolves 9 CVEs while improving threat detection efficiency...