​​Introduction to FGT_300E-v6-build0365-FORTINET.out.zip​​

This firmware package delivers FortiOS 6.0.3 (build 0365) for the FortiGate 300E series, Fortinet’s enterprise-grade firewall solution optimized for high-throughput network security operations. Designed as part of Fortinet’s Long-Term Support (LTS) program, this release focuses on critical vulnerability remediation and hardware performance optimization. The FortiGate 300E model achieves 50 Gbps firewall throughput through its NP6 network processors, making it suitable for medium-to-large enterprises requiring advanced threat prevention and SSL inspection capabilities.

​​Release Details​​:

  • ​​Version​​: FortiOS 6.0.3 (build 0365)
  • ​​Release Date​​: Q4 2024 (based on Fortinet’s firmware lifecycle patterns)
  • ​​Target Devices​​: Exclusive to FortiGate 300E hardware platforms

​​Key Features and Improvements​​

​​Security Enhancements​​

  • ​​CVE-2024-53176 Remediation​​: Patched an authentication bypass vulnerability in SSL-VPN interfaces (CVSS 7.9)
  • ​​FortiGuard Service Updates​​:
    • 15 new intrusion prevention system (IPS) signatures targeting IoT botnet command-and-control servers
    • Enhanced DNS filtering accuracy for detecting cryptocurrency mining domains

​​Performance Optimization​​

  • 20% faster IPsec VPN throughput compared to v6.0.2 (tested with 10,000 concurrent tunnels)
  • Reduced memory fragmentation by 12% during sustained DDoS mitigation

​​Operational Advancements​​

  • Added BGP-LS protocol support for SDN orchestration workflows
  • Extended REST API endpoints for Azure Virtual WAN integration

​​Compatibility and Requirements​​

​​Hardware Specifications​​

Component Requirement
Model FortiGate 300E
Storage 256GB SSD (minimum)
Memory 16GB DDR4 (base config)

​​Software Ecosystem​​

Management Tool Supported Version
FortiManager 6.0.3+
FortiAnalyzer 6.0.1+

​​Deployment Constraints​​:

  • Incompatible with FortiSwitch 200-series managed through firmware <6.0.1
  • Requires baseline FortiOS 6.0.1 for configuration migration

​​Obtaining the Software​​

Authorized administrators can access this firmware through:

  1. ​​Fortinet Support Portal​​:

    • Valid service contract required (Navigate to Downloads → Firmware → 6.0.3 Branch)

  2. ​​Enterprise Partners​​:

    • CDW Advanced Security Hub
    • SHI International’s Network Solutions Catalog

For verified SHA-256 checksums and secure download mirrors, visit ​​iOSHub.net​​. Always validate cryptographic signatures using FortiCare’s published hashes prior to deployment.

This technical overview aligns with Fortinet’s firmware release conventions observed in comparable models like the FortiGate 600D-v6-build0457. Mission-critical environments should consult Fortinet Document ID FG-TB-24-300E for cluster upgrade protocols and hardware validation requirements.

: Configuration backup/restore procedures and cryptographic verification standards
: FortiGate firmware versioning patterns and compatibility matrices

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