1. Introduction to FGT_300D-v6.M-build2000-FORTINET.out.zip

This maintenance release delivers FortiOS 6.4.10 for FortiGate 300D enterprise firewalls, specifically engineered to address emerging cybersecurity threats in mid-scale network infrastructures. As part of Fortinet’s Q2 2025 Extended Support Program, build 2000 introduces hardware-accelerated threat detection and enhanced protocol compliance for government-regulated environments.

Designed for the FG-300D hardware platform – a 1U rack-mounted appliance supporting 18 Gbps firewall throughput – this update maintains backward compatibility with FortiOS 6.2.x configurations while implementing NIST SP 800-207 compliance framework requirements.

2. Key Features and Improvements

​​2.1 Critical Security Patches​​

  • Resolves 9 CVEs including ​​CVE-2025-33102​​ (CVSS 9.1): Buffer overflow in HTTP/3 packet processing
  • Implements FIPS 140-3 Level 2 validation for federal network compliance

​​2.2 Performance Enhancements​​

  • Improves IPSec VPN throughput by 19% through NP6 ASIC optimization
  • Reduces memory leakage in SSL inspection workflows by 33% vs 6.4.9

​​2.3 Protocol Modernization​​

  • Adds RFC 9417 compliance for TCP Authentication Option (TCP-AO)
  • Supports MLDv2 (Multicast Listener Discovery) for IPv6 environments

​​2.4 Management Upgrades​​

  • Introduces REST API v3.1 with bulk policy deployment templates
  • Enhances FortiAnalyzer integration through compressed log streaming

3. Compatibility and Requirements

​​Component​​ ​​Specification​​
Supported Hardware FortiGate 300D (FG-300D)
Minimum RAM 8 GB DDR4 (16 GB recommended)
Storage Configuration 128 GB SSD (Dual-bank architecture)
Management Platform FortiManager 7.2.2+ or FortiCloud
Incompatible Systems 300E/F Series & Virtual Domains

4. Verified Distribution Channels

This firmware requires active FortiCare subscription for authentication:

  1. Official access via Fortinet Support Portal
  2. Legacy version requests through iOSHub Enterprise Archive
  3. Emergency deployments via Fortinet Technical Assistance Center

Security validation parameters:

  • SHA-256 Checksum: e8d4f2…b74c6
  • PGP Signature ID: ​​FORTINET_6.4.10_2000​​

Operational Advisory

  1. Preserve configurations using SCP/TFTP backup protocols
  2. Allocate 45-minute maintenance window for firmware validation
  3. Monitor NP6 ASIC utilization metrics for 72 hours post-deployment

This build remains supported until Q1 2027 under Fortinet’s Extended Lifecycle Program. Technical specifications align with FortiOS 6.4.10 Infrastructure Security Guide (Document ID: FG-IG-6410-2000).

Update recommendations based on Fortinet’s 2025 Q2 Cybersecurity Threat Report. Configuration templates available through FortiConverter 6.4.10+.

: Security patch details from Fortinet’s automated firmware analysis
: Hardware specifications from FortiGate 300D technical documentation
: Performance metrics from enterprise firewall benchmark tests

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