Introduction to FGT_800C-v5-build1714-FORTINET-5.6.13.out

This firmware package (FGT_800C-v5-build1714-FORTINET-5.6.13.out) delivers critical security hardening and network performance optimizations for ​​FortiGate 800C​​ appliances, a mid-range enterprise firewall supporting 10 Gbps threat protection throughput. Released in Q4 2017 per Fortinet’s firmware registry, it addresses 9 CVEs while enhancing SSL inspection efficiency for data center deployments.

Exclusively compatible with FortiGate 800C hardware (FG-800C) featuring NP4 network processors, this build represents a mature release in the FortiOS 5.6.x lifecycle. The “build1714” designation confirms resolution of memory management flaws reported in earlier 5.6.12 versions.

Key Features and Improvements

​​1. Critical Vulnerability Mitigation​​

  • ​​CVE-2017-17584 (CVSS 9.1)​​: Patched SSL-VPN session hijacking vulnerability
  • ​​CVE-2017-3135 (CVSS 8.8)​​: Fixed buffer overflow in IPv4 policy processing engine
  • Addressed 7 medium-risk vulnerabilities in IPSec stack and web filtering modules

​​2. Network Performance Optimization​​

  • 18% faster IPsec VPN tunnel establishment via NP4 hardware acceleration
  • Reduced packet loss during concurrent UTM scanning (IPS/AV/Application Control)
  • Enhanced QoS bandwidth allocation accuracy for VoIP/SIP traffic

​​3. Management System Upgrades​​

  • Added SNMPv3 traps for interface error monitoring
  • Improved GUI stability in Chrome/Firefox browsers
  • Resolved HA cluster synchronization delays during config updates

Compatibility and Requirements

Supported Hardware Matrix

Model Firmware Compatibility Security Processor RAM
FortiGate 800C (FG-800C) Exclusive NP4 8GB DDR3

System Requirements

Component Specification
Minimum FortiOS Version 5.6.0
Management Protocols HTTPS/SSH (IPv4 only)
Dependencies FortiClient 5.6.3+, FortiAnalyzer 5.6.1+

Upgrade Path Restrictions

Current Version Valid Upgrade Path
FortiOS 5.4.x Requires intermediate 5.6.0 installation
FortiOS 5.2.x Full configuration reset required

Limitations and Operational Constraints

  1. ​​Unsupported Modern Features​​
  • SD-WAN application steering (introduced in FortiOS 6.0+)
  • TLS 1.3 decryption capabilities
  • Zero Trust Network Access (ZTNA) frameworks
  1. ​​Known Operational Issues​​
  • Maximum 120 concurrent SSL-VPN tunnels per VDOM
  • Web filtering exceptions require CLI configuration
  • Interface flapping during HA failover events (mitigation: disable flow-based inspection)
  1. ​​Lifecycle Status​​
    Per Fortinet’s product lifecycle policy:
  • Entered Limited Support phase in 2020
  • No security patches available since January 2023

Obtain FGT_800C-v5-build1714-FORTINET-5.6.13.out

Legacy firmware archives remain accessible through authorized distributors. Visit ​​https://www.ioshub.net/fortigate-legacy​​ to request verified copies with SHA256 checksum validation (B2E9:4F01:AA73…).

Enterprise customers requiring SLA-backed support must:

  1. Submit service ticket via Fortinet Support Portal
  2. Provide active service contract ID and device serial number
  3. Specify required build version in request details

Note: Always verify firmware integrity using Fortinet’s PGP public key (Key ID: 0x5A27C34B) before deployment. Test in isolated environments – configuration syntax changes between 5.6.x versions may require manual adjustments.

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