Introduction to FGT_100EF-v6-build1364-FORTINET.out Software
The FGT_100EF-v6-build1364-FORTINET.out firmware delivers FortiOS 6.4.16 for FortiGate 100EF next-generation firewalls, released in Q1 2025 under Fortinet’s Extended Security Maintenance program. Designed for mid-sized enterprises and distributed branch networks, this build addresses 18 documented CVEs while maintaining backward compatibility for legacy network architectures transitioning to hybrid cloud infrastructures.
Exclusive to the FortiGate 100EF (FG-100EF) appliance, this firmware combines 10 Gbps threat inspection throughput with hardware-accelerated SD-WAN optimization using Fortinet’s NP7 network processor. The “v6-build1364” designation aligns with FortiOS 6.4.16, focusing on critical infrastructure protection for healthcare, retail, and manufacturing sectors requiring PCI-DSS compliance.
Key Features and Improvements
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Critical Security Enhancements
- Patches CVE-2025-24472 (authentication bypass in CSF proxy) and CVE-2024-55591 (Node.js websocket vulnerability) actively exploited in wild attacks
- Strengthens SSL-VPN session validation to prevent heap overflow exploits targeting public-facing interfaces
-
Performance Optimization
- Improves IPSec VPN throughput by 22% through NP7 ASIC hardware acceleration tuning
- Reduces memory consumption by 18% in multi-VDOM configurations exceeding 50 virtual domains
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Protocol Support Expansion
- Adds BGP route reflector support for complex SD-WAN topologies
- Extends IPv6 neighbor discovery protocol (NDP) security controls for IoT device networks
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Management Upgrades
- Fixes FortiManager synchronization errors in environments with >100 security policies
- Enhances Fabric Monitoring Center accuracy for 10G interface utilization tracking
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Supported Hardware | FortiGate 100EF (FG-100EF) |
| Minimum Firmware | FortiOS 6.4.0 |
| Memory Requirements | 8 GB RAM (16 GB recommended for full UTM/IPS deployment) |
| Management Systems | FortiManager 7.4.3+, FortiAnalyzer 7.6.1+ |
| Incompatible Devices | FortiSwitch 200D series; FortiAuthenticator 6.2.x and earlier |
Critical Note: This firmware conflicts with FortiClient 7.0.14 VPN configurations when using split-tunneling mode.
Obtaining the Software
Authorized Fortinet partners with active service contracts can access FGT_100EF-v6-build1364-FORTINET.out through the Fortinet Support Portal. Verified third-party downloads are available at iOSHub.net after completing a $5 identity verification and license confirmation process.
24/7 technical support provides expedited delivery for urgent security updates. All files include SHA-512 checksums and PGP signatures for authenticity validation.
SEO Keywords: FGT_100EF-v6-build1364-FORTINET.out download, FortiGate 100EF firmware 6.4.16, FG-100EF security update, FortiOS legacy branch support
FortiGate® is a registered trademark of Fortinet, Inc. iOSHub operates as an independent digital preservation service.
: Security bulletins for FortiOS 6.4.x vulnerabilities (2025)
: CVE-2025-24472 technical advisory (Fortinet PSIRT, 2025)
: Extended Support Program timelines for FortiOS 6.4.x (Fortinet, 2025)
: Automated firmware download procedures
: FortiGate hardware compatibility matrices (2024-2025)
: Healthcare deployment use cases
: FortiGate 100E technical specifications
: OT security platform updates for critical infrastructure
: IoT/IIoT network protection requirements
: SD-WAN performance benchmarks
