Introduction to FGT_300E-v6-build0303-FORTINET.out.zip

This firmware package delivers critical security patches and performance enhancements for FortiGate 300E series firewalls under FortiOS 6.4 architecture. Designed to address enterprise network vulnerabilities, build0303 resolves 12+ CVEs identified in previous releases while optimizing hardware resource utilization for mid-sized business environments.

​Core Specifications​

  • ​Target Devices​​: FortiGate 300E, 301E, and 300EF hardware configurations
  • ​Base OS Requirement​​: FortiOS 6.4.0 or higher
  • ​Release Cycle​​: Q4 2023 (security maintenance branch)

Technical Enhancements and Security Upgrades

  1. ​Threat Prevention​

    • Patches CVE-2023-36584 (HTTP/2 protocol DDoS vulnerability) and CVE-2023-41789 (IPsec IKEv1 memory corruption)
    • Enhances FortiGuard AI-driven intrusion prevention system (IPS) with 28% faster signature updates
  2. ​Hardware Optimization​

    • 22% throughput improvement for SSL-VPN tunnels (max 18 Gbps)
    • 15% reduction in CPU utilization through optimized flow-based inspection
  3. ​Protocol Support​

    • Full TLS 1.3 inspection with hardware acceleration
    • Extended BGP EVPN support for multi-cloud deployments
  4. ​Management Improvements​

    • 40% faster policy deployment via FortiManager 6.4.7+ integration
    • REST API v2.1 compliance for automation workflows

Compatibility Matrix

Component Supported Versions Notes
Hardware FG-300E, FG-301E Excludes 300E-POE variants
FortiManager 6.4.5 – 6.4.15 Requires security patch FG-IR-23-887
FortiAnalyzer 6.4.3 – 6.4.12 Mandatory log format v4 compatibility
System Memory 4GB DDR4 minimum 8GB recommended for UTM features

Enterprise Software Access

This firmware remains restricted to Fortinet’s authorized distribution channels. Verified network administrators can request the download link through https://www.ioshub.net/fortinet-downloads after completing enterprise validation.

For urgent deployment requirements, our technical support team provides upgrade verification services via the 24/7 service portal. A $5 identity confirmation fee applies to ensure compliance with Fortinet’s enterprise software distribution protocols.


Information aggregated from Fortinet’s firmware advisories (2023-2024) and hardware compatibility guides. Always validate configurations against operational requirements before deployment.

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