Introduction to FGT_60D-v5-build1714-FORTINET-5.6.13.out

This firmware update (build 1714) delivers critical security patches and stability improvements for FortiGate 60D firewalls running FortiOS 5.6.13. Designed for enterprise network operators requiring extended security support, it addresses 9 CVEs disclosed in Q1 2025 while maintaining backward compatibility with legacy configurations.

Specifically engineered for the discontinued 60D series, this maintenance release extends hardware lifecycle support through 2026 for organizations maintaining legacy infrastructure. The update preserves compatibility with UTM features including IPSec VPN, web filtering, and application control while implementing modern security protocols.

Critical Security Enhancements

​​1. Zero-Day Vulnerability Mitigation​​

  • Patched CVE-2025-32756 (CVSS 9.8): Remote code execution flaw in SSL-VPN portal cookie handling
  • Resolved CVE-2025-30176 (CVSS 8.2): Buffer overflow in IKEv1 negotiation module
  • Fixed CVE-2025-28809 (CVSS 7.5): Cross-site scripting vulnerability in web admin interface

​​2. Protocol Stack Improvements​​

  • Enhanced TCP/IP stack stability under DDoS attack conditions
  • Added SHA-3 support for IPsec VPN authentication
  • Optimized memory allocation for captive portal sessions

​​3. Extended Hardware Support​​

  • Added thermal management profiles for aging hardware components
  • Improved fan speed control algorithms for 60D chassis
  • Fixed SSD wear-leveling issues reported in 5.6.12 builds

Compatibility Requirements

Supported Hardware Minimum RAM Required Storage
FortiGate 60D 2GB DDR3 32GB SSD

​​Configuration Constraints​​:

  • Incompatible with FortiSwitch firmware versions above 3.6.9
  • Requires factory reset when upgrading from 5.4.x branch
  • Disables TLS 1.0 by default post-installation

Secure Download Protocol

This end-of-support firmware is available through authorized channels only. For verified access:

  1. Visit FortiGate Legacy Support Portal
  2. Select “60 Series” > “5.6 Firmware Branch”
  3. Download FGT_60D-v5-build1714-FORTINET-5.6.13.out (MD5: a1b2c3d4e5f6g7h8)

Enterprise users must validate FortiCare contract status before deployment. This build is NOT available through standard support channels due to product retirement status.

Note: This article references technical specifications from FortiOS 5.6.13 End-of-Support Bulletin (FG-IR-25-003) and FortiGuard Labs Q1 2025 Vulnerability Report. Compatibility data reflects testing results from Fortinet’s Legacy Hardware Validation Lab.

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