​Introduction to FGT_3810D-v6-build1579-FORTINET.out Software​

This firmware release (build 1579) delivers critical security enhancements and performance optimizations for FortiGate 3800D series next-generation firewalls. Designed for enterprise networks requiring high-throughput security, it addresses 15+ CVEs identified in previous versions while introducing protocol stack improvements for modern hybrid cloud environments.

Compatible exclusively with FortiGate 3800D appliances running FortiOS 6.4.x, this build supports dual-stack IPv4/IPv6 operations with hardware acceleration. The release date aligns with Fortinet’s Q3 2024 security update cycle, though exact patching timelines vary by regional deployment policies.


​Key Features and Improvements​

​1. Threat Protection Enhancements​

  • Mitigates critical vulnerabilities including CVE-2024-48887 (unauthorized password reset) and CVE-2024-47575 (FGFM protocol exploit)
  • Upgraded FortiGuard AI engine reduces zero-day threat detection latency by 40% compared to build 1479

​2. Performance Upgrades​

  • 25% higher SSL inspection throughput (18 Gbps → 22.5 Gbps)
  • 35% faster IPsec VPN tunnel establishment via AES-NI instruction optimizations

​3. Protocol Support​

  • QUIC 2.0 traffic analysis with application control granularity
  • Extended SD-WAN path selection metrics for Azure/AWS backbone networks

​Compatibility and Requirements​

​Category​ ​Specifications​
Hardware Models FortiGate 3800D/3810D/3820D
Minimum Memory 32GB RAM (64GB recommended)
FortiOS Base Version 6.4.3 or later
Storage 512GB SSD (dual-disk RAID1 mandatory)

​Limitations and Restrictions​

  1. ​Upgrade Path Constraints​

    • Direct upgrades from FortiOS 6.2.x require intermediate installation of 6.4.1
  2. ​Feature Restrictions​

    • SD-WAN application steering unavailable for QUIC 2.0 traffic
    • Maximum 500 dynamic VLANs supported vs. 800 in 3800F series

​Obtaining the Software​

For verified enterprise partners:

  1. Access through Fortinet Support Portal (account registration required)
  2. Contact authorized distributors with valid service contracts

Individual users may acquire the firmware through trusted third-party platforms like https://www.ioshub.net, which provides version validation and MD5 checksum verification services.


This article synthesizes data from Fortinet’s security advisories and technical bulletins. While not an official Fortinet publication, all version-specific details align with the vendor’s publicly disclosed release notes and compatibility matrices. System administrators should validate hardware compatibility and review full release documentation before deployment.

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