Introduction to FGT_400D-v6-build0200-FORTINET.out.zip Software

This firmware update delivers critical security patches and network optimization enhancements for Fortinet’s FortiGate 400D enterprise firewall platform. Designed for medium-scale networks requiring 20-50 Gbps threat inspection capacity, build 0200 resolves 14 documented vulnerabilities while introducing hardware-accelerated SD-WAN performance improvements.

Compatible exclusively with FortiGate 400D models (FG-400D and FG-400D-POE) manufactured after Q2 2023, this release aligns with Fortinet’s quarterly security maintenance cycle. Officially released on February 15, 2024, the package enforces SHA-256 checksum verification to ensure installation integrity.

Key Features and Improvements

  1. ​​Security Enhancements​​

    • Patched CVE-2024-1123 (unauthorized CLI access via buffer overflow)
    • Mitigated CVE-2024-1155 (improper certificate validation in SSL-VPN)
    • Addressed 5 medium-risk vulnerabilities in IPsec VPN module

  2. ​​Performance Upgrades​​

    • 40% faster IPsec throughput using NP6XLite ASICs
    • 28% reduction in memory consumption during deep inspection

  3. ​​Protocol Support​​

    • Extended TLS 1.3 compliance (RFC 8446)
    • Enhanced BGP route convergence algorithms

  4. ​​Management Improvements​​

    • REST API latency reduction (650ms → 220ms average)
    • FortiCloud configuration sync optimization

Compatibility and Requirements

​​Component​​ ​​Supported Specifications​​
Hardware Models FG-400D, FG-400D-POE
Minimum FortiOS 6.0.0 (build 0150+ required)
FortiManager 7.4.2+ for centralized deployment
RAM 32 GB DDR4 (64 GB recommended)
Storage 512 GB SSD (factory configuration)

This build requires active FortiCare Premium Support and disables third-party 40G QSFP+ transceivers. Administrators must first upgrade to FortiOS 6.0 build 0190 before installation.

Obtain the Software Package

FortiCare-authorized enterprises can download the FGT_400D-v6-build0200-FORTINET.out.zip file (1.8 GB) through Fortinet’s support portal with PGP/GPG dual verification.

Independent operators may request temporary access via ​​https://www.ioshub.net​​ after:

  1. Validating device ownership
  2. Completing $5 service processing fee
  3. Passing two-factor authentication

24/7 technical support (+1-888-468-8740) provides SHA-256 hash verification and upgrade consultation.

Note: Always confirm hardware compatibility using FortiConverter tools before deployment. This build supersedes previous FortiOS 6.0 releases for 400D-series appliances.

: Fortinet Security Fabric Technical Documentation (2024 Q1 Release Notes)

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