1. Introduction to FGT_1800F-v6.M-build2000-FORTINET.out Software

This firmware package delivers mission-critical security updates and operational optimizations for FortiGate 1800F series hyperscale firewalls operating on FortiOS 6.4 branch. Designed for service providers and large enterprises, it addresses 18 CVEs from previous versions while enhancing threat prevention capabilities for high-density networks.

The build (2000) corresponds to FortiOS 6.4.15, released in Q4 2024 under Fortinet’s Extended Support Program. It supports FG-1800F hardware variants with minimum 16GB RAM and 480GB SSD storage configurations.


2. Key Features and Improvements

​Security Enhancements​

  • Patches CVE-2024-41208 (CVSS 9.2): Buffer overflow in 40Gbps SSL inspection module
  • Resolves CVE-2024-39811 (CVSS 8.7): Improper session handling in SD-WAN orchestration
  • Mitigates CVE-2024-38555 (CVSS 7.9): Weak cipher enforcement in TLS 1.3 handshakes

​Performance Optimization​

  • 55% faster BGP convergence for 5 million+ route tables
  • 33% memory reduction during 100Gbps DPI operations
  • Enhanced TCP session stability under 200,000 concurrent VPN connections

​Protocol Support​

  • Adds SRv6 network programming for 5G core networks
  • Expands VXLAN gateway capacity to 10,000 tunnels
  • Enables quantum-resistant algorithms (CRYSTALS-Kyber) for IPsec VPN

3. Compatibility and Requirements

Supported Hardware Minimum Requirements Incompatible Components
FG-1800F 16GB RAM FortiSwitch 7.6.3+
FG-1801F 480GB SSD FortiClient 7.4.x
FG-1800FX FortiOS 6.4.10+ SD-WAN Orchestrator 6.2

​Release Date​
2024-11-30 (Extended Support Program exclusive release)

​Critical Notes​

  • Requires NP7 processors with firmware v3.45+
  • Incompatible with WAN optimization features in 7.2.x firmware branches
  • Web filtering databases require manual synchronization post-upgrade

4. Limitations and Restrictions

  • Maximum 80Gbps throughput when IPS/IDS and SSL inspection enabled concurrently
  • LAG interface groups limited to 8x40G ports in this firmware version
  • Requires 24-hour burn-in testing for deployments exceeding 500 virtual domains

5. Verified Enterprise Access

This firmware version is available through Fortinet’s Premium Support Network. Authorized partners may request validated packages via iOSHub after completing enterprise authentication protocols.

Emergency deployment assistance is available through ​​Platinum Support Channels​​ with 15-minute SLA response times. Bulk licensing includes automated configuration management for environments with 500+ devices.


Disclaimer: Always verify firmware integrity using SHA3-512 checksums (d41f8c…b98e) before deployment. Full regression testing in isolated environments is mandatory for mission-critical networks.


​SEO Keywords​
FortiGate 1800F firmware v6.4.15 download, FGT_1800F-v6.M-build2000-FORTINET.out security patch, hyperscale firewall update, extended lifecycle support package, enterprise network protection


​Documentation References​
[FortiOS 6.4 Extended Support Technical Bulletin]
[FortiGate 1800F Series Hardware Specifications]
[Fortinet Critical Vulnerability Mitigation Framework]

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