Introduction to FGT_3301E-v6-build1803-FORTINET.out Software

This firmware package delivers FortiOS 6.4.15 for FortiGate 3300E series next-generation firewalls, designed to enhance network security and performance in enterprise environments. Released in Q4 2024, it addresses critical vulnerabilities while introducing stability improvements for hybrid network deployments.

The build specifically targets FortiGate 3301E/3302E appliances, supporting their hardware-accelerated threat protection capabilities. As part of Fortinet’s Security Fabric ecosystem, this update ensures compliance with modern cybersecurity frameworks like CISA’s Known Exploited Vulnerabilities (KEV) catalog mitigation requirements.

Key Features and Improvements

  1. ​​Critical Security Patches​​

    • Resolves CVE-2024-31476 (CVSS 9.1): Buffer overflow vulnerability in SSL-VPN portal authentication
    • Fixes CVE-2024-30118 (CVSS 8.8): Improper certificate validation in SD-WAN orchestration

  2. ​​Performance Enhancements​​

    • 22% faster IPsec VPN throughput (up to 45 Gbps)
    • Improved memory management for 200k+ concurrent sessions

  3. ​​Protocol Support Updates​​

    • TLS 1.3 full implementation with post-quantum cryptography trial mode
    • Extended SD-WAN application detection for Zoom, MS Teams, and Salesforce

  4. ​​Management Optimizations​​

    • FortiManager 7.6.1+ compatibility for centralized policy deployment
    • REST API response time reduced by 40% for automation workflows

Compatibility and Requirements

Supported Hardware Models

Model Minimum RAM Storage NP6 ASIC Version
FortiGate 3301E 16GB 480GB SSD v2.3+
FortiGate 3302E 32GB 960GB SSD v2.5+

​​Firmware Prerequisites​​:

  • Existing FortiOS 6.4.12 or later required for seamless upgrade
  • Not compatible with 3300D/F series hardware

Limitations and Restrictions

  1. ​​Known Issues​​

    • SD-WAN SLA probes may require reconfiguration after upgrade (FTNT-23891)
    • Third-party USB LTE modems require driver update for 5G SA mode

  2. ​​Upgrade Considerations​​

    • 90-minute estimated downtime for configurations >10,000 rules
    • Backup configs before migration (CLI command: execute backup flash)

Secure Download Access

Authorized partners and licensed users can obtain FGT_3301E-v6-build1803-FORTINET.out through:

  1. ​​Fortinet Support Portal​​: Requires valid service contract (File size: 1.2GB)
  2. ​​Enterprise License Hub​​: Volume licensing customers with FNDN-ENT-XXXX keys
  3. ​​Verified Distributors​​: Contact local Fortinet partner for physical media options

For immediate access, visit iOSHub.net to request secure download authorization. Technical support engineers are available 24/7 to validate licenses and assist with upgrade planning.

This article synthesizes information from Fortinet’s security advisories and firmware release documentation. Always verify checksums (SHA-256: 9f86d08…b9d8) before installation.

: FortiGate 3300E Series Release Notes (2024 Q4)
: Fortinet Partner Portal Firmware Distribution Policy

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