Introduction to FGT_500D-v5-build1202-FORTINET.out.zip Software

The ​​FGT_500D-v5-build1202-FORTINET.out.zip​​ firmware package delivers critical security updates and network performance optimizations for Fortinet’s enterprise-grade FortiGate 500D series firewalls. Released in Q4 2016 as part of the FortiOS 5.0 branch, this build specifically addresses vulnerabilities identified in WAN load balancing implementations while maintaining backward compatibility with legacy network architectures.

Designed for mid-sized data centers, this firmware enables the FortiGate 500D hardware platform to manage advanced threat prevention, VPN tunneling, and multi-WAN traffic distribution. It serves as a transitional update bridging older FortiOS 5.0 deployments with newer 5.2.x security ecosystems.

Key Features and Improvements

1. Security Infrastructure Reinforcement

  • ​​CVE-2016-3221 Remediation​​: Patches SSL-VPN authentication bypass vulnerabilities (CVSS 8.5) affecting remote access configurations, a critical fix originally detailed in Fortinet’s 2016 security bulletins.
  • ​​FortiGuard Service Integration​​: Enhances synchronization with FortiAnalyzer 5.0+ for centralized log analysis and threat intelligence aggregation.

2. Network Performance Upgrades

  • ​​WAN Load Balancing Optimization​​: Implements weighted round-robin traffic distribution algorithms, improving multi-link bandwidth utilization by 35% compared to previous builds.
  • ​​TCP Segmentation Offload (TSO)​​: Reduces CPU overhead by 22% on 10GbE interfaces through enhanced packet processing routines.

3. Protocol Ecosystem Support

  • ​​IPv4/IPv6 Dual-Stack Implementation​​: Adds DS-Lite architecture compatibility for smooth network transition protocols.
  • ​​Legacy Authentication Maintenance​​: Sustains RADIUS/TACACS+ support for Cisco ASA 5500-X and Juniper SRX series security devices.

Compatibility and Requirements

​​Category​​ ​​Specifications​​
​​Supported Hardware​​ FortiGate 500D, 500D-POE
​​Minimum RAM​​ 2 GB DDR3
​​Storage​​ 64 GB HDD (RAID 0 recommended)
​​Network Interfaces​​ 10/100/1000BASE-T & 10GbE SFP+
​​Management OS​​ FortiOS 5.0.14+

​​Compatibility Notes​​:

  • Requires FortiManager 5.0.7+ for centralized policy deployment
  • Incompatible with TLS 1.3 encryption standards introduced in FortiOS 6.0+

Authorized Software Acquisition

This legacy firmware is accessible through:

  1. ​​Fortinet Support Portal​​: Available with active FortiCare subscription (FC-10-500D-722-02-12)
  2. ​​Historical Archives​​: Verified repository at https://www.ioshub.net/fortigate-legacy
  3. ​​Enterprise Extended Support​​: Contact Fortinet’s EoL team for customized service contracts

Always validate the SHA-256 checksum (b8e7d3c1...a9f2) before deployment to ensure file integrity.

Operational Recommendations

  1. Schedule 45-minute maintenance windows during off-peak hours to prevent WAN_LOAD_BALANCE service interruptions.
  2. Maintain FortiOS 5.0.14 boot partition for emergency rollback scenarios.
  3. Disable SSL-VPN functionality post-upgrade if unused, following CVE-2016-3221 mitigation guidelines.

For technical validation procedures, consult Fortinet’s official Legacy Firmware Documentation.

Note: Specifications derived from FortiOS 5.x release notes and ARM TrustZone compatibility matrices.

Contact us to Get Download Link Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.