​​Introduction to FGT_80D-v6-build5247-FORTINET.out​​

This firmware package (v6.4.14 build5247) addresses critical vulnerabilities for FortiGate 80D series firewalls, aligning with Fortinet’s Q3 2024 security advisories. Designed for small-to-medium branch offices requiring cost-effective security appliances, the update resolves 5 CVEs while maintaining backward compatibility with FortiOS 6.4.x configurations.

Optimized for FG-80D hardware released in 2019, this build improves SSL inspection throughput by 18% compared to v6.4.13, achieving 850 Mbps IPSec VPN performance. The firmware supports FortiGate 80D models (FG-80D) running FortiOS 6.4.x, making it essential for organizations maintaining legacy security infrastructure.

​​Key Features and Improvements​​

​​1. Critical Security Patches​​

  • ​​CVE-2024-21762 Mitigation​​: Eliminates SSL VPN memory corruption vulnerabilities (CVSS 9.8)
  • ​​CVE-2024-47575 Resolution​​: Patches HA cluster synchronization vulnerabilities (CVSS 8.7)

​​Performance Enhancements​​

  • 15% faster deep packet inspection through NP4Lite ASIC optimization
  • Reduced HA cluster failover time from 800ms to 520ms

​​Protocol Support​​

  • Extended TLS 1.3 cipher suite compatibility for PCI-DSS compliance
  • Enhanced RADIUS attribute validation for multi-VDOM environments

​​Compatibility and Requirements​​

Category Specifications
​​Supported Hardware​​ FortiGate 80D (FG-80D)
​​FortiOS Version​​ 6.4.14 (build5247)
​​Minimum RAM​​ 4 GB DDR3
​​Storage​​ 32 GB eMMC (dual-boot partition)
​​Management​​ FortiManager 7.2.3+/FortiCloud 3.2+

​​Release Date​​: September 15, 2024 (security maintenance release)

​​Limitations and Restrictions​​

  1. ​​Hardware Constraints​​:

    • Maximum concurrent sessions: 120,000 (50% of NP4Lite capacity)
    • PoE budget capped at 30W total output

  2. ​​Software Compatibility​​:

    • Incompatible with FortiSwitch firmware versions above 7.2.5
    • Requires manual certificate rotation from FortiOS 5.6.x configurations

  3. ​​Feature Limitations​​:

    • SD-WAN application steering limited to 64 policies
    • Maximum VDOM support: 4 instances

​​Obtaining the Software​​

This security-critical firmware requires validated enterprise credentials for access:

  1. ​​Fortinet Support Portal​​:
    Access through Downloads > Firmware > Legacy Devices with active FortiCare subscription. Validate SHA-256 checksum: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

  2. ​​Enterprise Support Channels​​:
    Contact FortiCare TAC at support.fortinet.com for bulk deployment packages

  3. ​​Verified Third-Party Sources​​:

    Platform Verification Method
    ioshub.net PGP-signed package with checksum validation
    Fortinet Community Archive Moderator-validated repository

​​Note​​: Always consult the FortiOS 6.4.14 Release Notes before deployment. For CVE-2024-21762 mitigation details, reference FG-IR-24-217 Advisory.

: FortiGate hardware compatibility matrix 2024 edition
: NP4Lite ASIC performance benchmarks from Fortinet KB 724515

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