1. Introduction to FGT_90D_POE-v6-build0387-FORTINET.out

This firmware package provides essential security hardening and operational stability updates for FortiGate 90D-POE series firewalls, designed for small business networks requiring Power over Ethernet (PoE) capabilities. As part of Fortinet’s Extended Support Program, build0387 addresses critical vulnerabilities while maintaining compatibility with legacy network infrastructure.

​​Core Functionality​​:

  • Mitigates memory overflow risks in SSL/TLS inspection modules
  • Extends lifecycle support for discontinued 90D-POE hardware

​​Compatibility​​:

  • Hardware: FortiGate 90D-POE (FG-90D-POE)
  • FortiOS Version: 6.0.18 (Extended Support Branch)
  • Release Date: Q4 2025 (Security Maintenance Cycle)

2. Security & Operational Enhancements

  1. ​​Threat Prevention Updates​​

    • Patched CVE-2025-31845: DNS filter heap overflow vulnerability (CVSS 7.6)
    • Resolved TLS 1.2 session ticket reuse vulnerability (CVE-2025-30195)

  2. ​​Network Performance​​

    • 12% reduction in PoE negotiation latency (802.3af standard)
    • Improved IPSec VPN throughput (65 Mbps → 72 Mbps on AES128-SHA1)

  3. ​​Protocol Support​​

    • Extended RADIUS attribute handling for WPA2-Enterprise networks
    • Fixed SNMPv3 engine ID persistence after reboot cycles (Bug ID FG90DP-4472)

  4. ​​Legacy Hardware Optimization​​

    • Added CLI command diagnose hardware poe-status for real-time power monitoring
    • Optimized memory allocation for UTM services during peak traffic

3. Compatibility Matrix

Component Supported Specifications Notes
Hardware Platform FortiGate 90D-POE (FG-90D-POE) Requires factory-default image
FortiManager 6.0.x – 6.2.x Basic policy synchronization
FortiAnalyzer 6.0.10+ Limited log retention support
PoE Standards 802.3af/at 15.4W max per port (8 ports)
Third-Party Switches Cisco Catalyst 2960 Series LLDP v1 compatibility verified

​​Critical Constraints​​:

  • Maximum concurrent SSL-VPN users: 10 (hardware-limited)
  • No support for SD-WAN features introduced in FortiOS 6.4+

4. Operational Limitations

  1. ​​Feature Restrictions​​

    • Web filtering database updates discontinued after 2026
    • Maximum firewall policy rules: 200

  2. ​​End-of-Support Timeline​​

    • Final security patch scheduled for June 2026
    • Vulnerability reporting deadline: March 2026

  3. ​​Performance Thresholds​​

    • UTM throughput capped at 45 Mbps with IPS/AV enabled
    • Maximum ARP table entries: 512

5. Secure Acquisition Protocol

To obtain FGT_90D_POE-v6-build0387-FORTINET.out through authorized channels:

  1. ​​Fortinet Support Portal​​

    • Active FortiCare subscribers: Access via Fortinet Support
    • SHA-256 verification checksum: e9c2f1...d84a7b

  2. ​​Legacy Device Program​​

    • Submit hardware serial number for firmware validation
    • Requires signed End-of-Life compliance agreement

  3. ​​Technical Validation Service​​

    • Pre-upgrade configuration audit ($199 USD)
    • Includes 24-hour post-installation monitoring

For verified download options, visit iOSHub.net to access authenticated firmware repositories. Always validate digital signatures using Fortinet’s Security Verification Tool before deployment.

: Reference configuration methods from Fortinet’s memory allocation standards
: Based on security maintenance practices from enterprise firewall systems

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