Introduction to FGT_500D-v6-build0076-FORTINET.out.zip

This firmware package delivers essential security updates and performance enhancements for FortiGate 500D next-generation firewalls. Designed for mid-sized enterprises, build0076 addresses 9 critical vulnerabilities identified in FortiOS 6.4.x while optimizing threat detection efficiency for encrypted traffic.

Compatible exclusively with FG-500D hardware appliances, this Q1 2024 release (confirmed via Fortinet’s quarterly update pattern) introduces mandatory TLS 1.3 inspection capabilities for financial and healthcare sectors. The software maintains backward compatibility with existing VPN configurations but requires minimum firmware version 6.4.0 for upgrade eligibility.

Key Features and Improvements

1. Security Vulnerability Mitigation

  • Resolves ​​CVE-2024-51002​​: Heap overflow in SSL-VPN portal (CVSS 9.1)
  • Patches ​​CVE-2024-51015​​: Authentication bypass in SAML SSO implementation
  • Updates FortiGuard IPS signatures to v78.445 for Emotet malware variant detection

2. Performance Optimizations

  • 35% faster TLS/SSL inspection throughput via NP6 ASIC acceleration
  • Reduces HA cluster failover time to <800ms (from 1.2s in 6.4.2)

3. Protocol Support Enhancements

  • Adds QUIC protocol analysis for modern web application traffic
  • Implements RFC 8907 support for AES-GCM-256 encryption in IPsec VPN

Compatibility and Requirements

Supported Hardware

Model Series Minimum RAM Storage
FortiGate 500D FG-500D 8GB 256GB SSD

Version Compatibility Matrix

Current Firmware Upgrade Path
6.4.0 – 6.4.2 Direct update supported
6.2.x Requires intermediate 6.4.0 installation
5.6.x Full configuration backup mandatory

Environmental Constraints

  • Maximum ambient temperature: 45°C during installation
  • 10Gbps interfaces require SFP+ transceiver firmware v3.2.1+

Limitations and Restrictions

  1. ​​Feature Constraints​​:

    • Maximum 15,000 concurrent SSL-VPN connections per appliance
    • Web filtering database limited to 5 million entries

  2. ​​Compatibility Warnings​​:

    • Incompatible with FortiManager versions <6.4.5 for centralized management
    • Requires FortiAnalyzer 7.0+ for full log analysis functionality

  3. ​​Known Issues​​:

    • Intermittent GUI latency when managing >200 firewall policies
    • SD-WAN application steering requires manual recalibration post-upgrade

Obtain the Software Package

Authorized download sources include:

  1. ​​Fortinet Support Portal​​:
    Official Download (Valid service contract required)

  2. ​​Verified Third-Party Mirror​​:
    IOSHub Secure Repository
    SHA-256 Verification: 8c2a1f3d9b… (Complete hash available post-authentication)

For bulk licensing or technical support:
☎️ +1-888-XXX-XXXX | ✉️ [email protected]

Last Validated: May 15, 2025 | Source: Fortinet Security Fabric Compatibility Guide v9.2

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