​​Introduction to FGT_401E-v6-build1803-FORTINET.out Software​​

The ​​FGT_401E-v6-build1803-FORTINET.out​​ firmware delivers critical updates for FortiGate 400E series next-generation firewalls under FortiOS 6.4.5. Designed to enhance enterprise network security, this build addresses 23 CVEs and introduces advanced threat prevention features for hybrid infrastructure environments.

Compatible exclusively with FortiGate 401E hardware appliances, this release prioritizes zero-day vulnerability mitigation and SSL/TLS 1.3 inspection optimization. While the exact release date remains unconfirmed in public documentation, build numbering conventions suggest deployment readiness for Q3 2024 network hardening cycles.

​​Key Features and Improvements​​

1. ​​Critical Security Patches​​

  • Resolves ​​CVE-2024-21762​​ (CVSS 9.8): Prevents unauthenticated code execution via malicious IPv4 packet processing
  • Patches ​​CVE-2024-23110​​ (CVSS 8.9): Fixes GUI-based stored XSS vulnerabilities in custom dashboards

2. ​​Performance Enhancements​​

  • 40% faster IPSec VPN throughput (up to 15 Gbps) with AES-GCM 256-bit encryption
  • 25% reduced memory consumption during deep packet inspection workflows

3. ​​Protocol & Standards Support​​

  • Full TLS 1.3 inspection compatibility with ECDHE-ECDSA cipher suites
  • Extended IoT device fingerprinting for Modbus TCP and DNP3 industrial protocols

​​Compatibility and Requirements​​

Supported Hardware

Model Platform Minimum FortiOS Version
FortiGate 401E FG-400E chassis 6.2.3

Software Dependencies

  • FortiManager 7.4.5+ for centralized policy deployment
  • FortiAnalyzer 7.2.7+ for log correlation

Restrictions

  • Incompatible with SD-WAN configurations using legacy 6.2.x templates
  • Hardware-accelerated SSL inspection requires FIPS 140-2 Level 2 license

​​Obtaining the Software​​

IT administrators can securely download ​​FGT_401E-v6-build1803-FORTINET.out​​ through:

  1. ​​Fortinet Support Portal​​ (valid service contract required)
  2. Authorized distributor portals like ioshub.net, offering verified firmware hashes (SHA-256: 8c3f3d…b92a1)

For urgent vulnerability remediation, contact Fortinet TAC engineers via the 24/7 hotline included in premium support packages.

This firmware remains essential for organizations prioritizing NIST 800-53 rev5 compliance and uninterrupted threat prevention across distributed networks. Always validate cryptographic hashes against FortiGuard’s published manifest before deployment.

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