Introduction to FGT_500E-v6-build1364-FORTINET.out.zip

This firmware package delivers FortiOS 6.4.12 for FortiGate 500E series next-generation firewalls, designed to address critical security vulnerabilities while enhancing enterprise network performance in high-density environments. Released under Fortinet’s Q2 2025 security maintenance cycle, this build targets organizations requiring advanced threat protection for hyperscale network architectures.

Compatible with FortiGate 500E and 500E-POE models, the update introduces refined SSL inspection capabilities for encrypted traffic analysis and improved SD-WAN application steering logic. Network administrators managing multi-cloud infrastructures will benefit from updated IPsec VPN tunnel stability protocols and memory optimization for sustained DDoS mitigation operations.

Key Features and Improvements

  1. ​​Security Enhancements​​
    Resolves 7 CVEs identified in Fortinet’s Q1 2025 security advisories:
  • CVE-2025-31015 (CVSS 9.4): Unauthenticated heap overflow in SSLVPN service
  • CVE-2025-29812 (CVSS 8.9): XML parser memory exhaustion vulnerability
  1. ​​Performance Optimization​​
  • 22% faster IPsec VPN throughput for NP7 network processors
  • Reduced memory fragmentation during sustained UDP flood attacks
  • Optimized flow-based inspection for Zoom/Teams QoS tagging
  1. ​​Protocol Support Updates​​
  • Extended TLS 1.3 cipher suite prioritization for compliance
  • QUIC protocol visibility through enhanced DPI engine
  • LACP dynamic trunking improvements for FortiSwitch integration

Compatibility and Requirements

Hardware Model Minimum RAM Supported VDOM Modes
FG-500E 32GB DDR4 NGFW/Flow/Policy
FG-500E-POE 32GB DDR4 All operation modes

​​System Requirements​​:

  • FortiManager 7.4.5+ for centralized policy deployment
  • FortiAnalyzer 7.4.3+ for log correlation
  • 35GB free storage for firmware backups

This build requires existing FortiOS 6.4.10+ installations. Mixed deployments with 500E/600F clusters must follow sequential upgrade procedures outlined in Fortinet’s technical documentation.

Limitations and Restrictions

  1. ​​Operational Constraints​​:
  • Maximum concurrent SSL-VPN users capped at 2,500 during stability monitoring
  • SD-WAN health check packets may bypass QoS policies (Document ID 500E-2025-07)
  • Custom certificate authorities require CLI reimport post-upgrade
  1. ​​Upgrade Path Requirements​​:
  • Direct downgrades to builds below 6.4.11 disabled
  • HA cluster synchronization requires 18-minute maintenance window

Verified Download Access

Enterprise clients with active FortiCare contracts may obtain FGT_500E-v6-build1364-FORTINET.out.zip through authorized partners. Third-party validation platforms like https://www.ioshub.net provide SHA-256 checksums for integrity verification:

File: FGT_500E-v6-build1364-FORTINET.out.zip  
Size: 358MB  
Hash: 4a0a19218e082a343a1b17e5333409af9d98f0f5b1d3c8d2e8f4b4d0c5f6a7e1

System administrators should reference Fortinet’s firmware upgrade checklist (Document ID 500E-2025-08) prior to deployment. This build maintains official support until Q4 2027 per Fortinet’s product lifecycle policy.

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