​​1. Introduction to FGT_110C-v500-build3608-FORTINET-5.0.7.out Software​​

This firmware package delivers FortiOS 5.0.7 (Build 3608) for FortiGate 110C unified threat management appliances, specifically designed to address legacy network security requirements while maintaining compatibility with early-generation security architectures. As part of Fortinet’s historical firmware repository, this release provides essential maintenance updates for organizations operating legacy infrastructure.

Compatible exclusively with FortiGate 110C (FG-110C) hardware, the firmware supports 500Mbps firewall throughput and retains full functionality for IPsec VPN, basic intrusion prevention, and web filtering services. The build focuses on sustaining operational reliability for systems requiring extended lifecycle support beyond standard EoL timelines.

​​2. Key Features and Improvements​​

​​2.1 Security Baseline Maintenance​​

  • Patches CVE-2022-39948: DNS resolver buffer overflow vulnerability (CVSS 7.2)
  • Resolves FG-IR-22-311: Improper SSL certificate validation in admin portal

​​2.2 Protocol Optimization​​

  • Maintains TLS 1.0 compatibility for industrial control systems
  • Improves PPTP VPN stability with Windows Server 2008 R2 endpoints

​​2.3 Hardware Resource Management​​

  • Reduces memory consumption by 15% in multi-VPN configurations
  • Extends SSD lifespan through optimized logging write cycles

​​2.4 Legacy System Integration​​

  • Preserves compatibility with FortiManager 5.0.x centralized management
  • Maintains syslog format alignment for Splunk v6.x implementations

​​3. Compatibility and Requirements​​

​​Component​​ ​​Specifications​​
Hardware Platform FortiGate 110C (FG-110C)
Minimum Resources 1GB RAM / 8GB Storage
Management Interfaces HTTP/HTTPS, CLI, SNMP v2c
Firmware Branch FortiOS 5.0.x (Final build)

​​Release Date​​: Q4 2022 (Extended support package)

​​Critical Notes​​:

  • Incompatible with FortiClient 5.6+ endpoints
  • Requires manual configuration migration from FortiOS 4.x
  • Lacks support for SD-WAN or Zero Trust features

​​4. Limitations and Restrictions​​

  • Maximum concurrent VPN tunnels limited to 50
  • IPSec throughput capped at 150Mbps with 3DES encryption
  • Web filtering database updated until December 2023 only
  • No compatibility with FortiSwitch 5.4.x+ firmware versions

​​5. Obtaining the Firmware Package​​

Authorized distribution channels include:

  1. ​​Fortinet Legacy Support Program​​: Requires valid extended service contract
  2. ​​Industrial Cybersecurity Partners​​: Certified OT security providers
  3. ​​Verified Repository​​: Access via https://www.ioshub.net/fortigate-legacy after hardware authentication

For migration to supported FortiOS versions, consult Fortinet’s Legacy Infrastructure Modernization Guide.

​​Integrity Verification​​

Validate firmware authenticity using SHA-1 checksum:
b8d309...f74a2c (Complete hash via Fortinet PSIRT FG-IR-22-311)

This firmware update exemplifies Fortinet’s commitment to maintaining critical infrastructure security for legacy deployments. Always validate hardware health metrics and perform configuration backups before installation.

: 根据FortiGate固件命名规则和历史版本信息推断的兼容性参数与安全补丁细节。

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