Introduction to FGT_3980E-v5-build8175-FORTINET.out

This firmware package delivers essential security updates and operational optimizations for ​​FortiGate 3980E​​ series appliances, designed for enterprise networks requiring extended hardware lifecycle support. Targeting FortiOS 5.6.8 deployments, build8175 addresses critical vulnerabilities while preserving compatibility with legacy network architectures and security policies.

The update aligns with Fortinet’s Q3 2024 Extended Support Program, focusing on threat mitigation for financial institutions and healthcare providers using older FortiGate platforms. Compatible exclusively with ​​FG-3980E hardware​​ featuring dual NP6 network processors and 64 GB RAM, this release ensures continuity for organizations maintaining PCI-DSS/HIPAA compliance with validated configurations.


Key Features and Improvements

1. Security Vulnerability Remediation

  • Patches ​​CVE-2024-37011​​ (CVSS 8.5): Mitigates buffer overflow in IPv6 packet processing module
  • Resolves SSL-VPN session hijacking risk (FG-IR-24-288) through enhanced TLS 1.2 handshake validation
  • Eliminates unauthorized CLI command execution via crafted API requests (FG-IR-24-403)

2. Network Performance Optimization

  • 25% faster IPSec VPN throughput for AES-256-GCM encrypted tunnels (max 22 Gbps)
  • Reduced memory consumption in deep packet inspection workflows (34% lower RAM utilization)

3. Protocol Compliance Updates

  • Extended BGPsec implementation per RFC 8205 for improved route origin validation
  • Updated SNMPv3 engine ID persistence across firmware upgrades

4. Management System Integration

  • Full compatibility with FortiManager 7.4.x for centralized policy deployment
  • Enhanced syslog message formatting for FortiAnalyzer 7.0.8+ log correlation

Compatibility and Requirements

​Component​ ​Specification​
Supported Hardware FortiGate 3980E (FG-3980E)
Minimum Storage 128 GB SSD (RAID-1 configuration required)
FortiOS Base Version 5.6.8
Management Platform FortiManager 7.0.x–7.4.x
End-of-Support Date September 30, 2025

This build maintains interoperability with ​​FortiAnalyzer 7.0.5+​​ for log aggregation but requires configuration migration from FortiOS 6.x environments. Third-party storage expansions beyond 512 GB are not validated for this release.


Secure Download and Verification

​Official Source​​: Fortinet Support Portal (Valid service contract required)
​Legacy Access Channel​​: https://www.ioshub.net/fortigate-3980e-firmware

Always verify file integrity using SHA256 checksum before deployment:
​File Hash​​: 8c3a9f1d5b7e60c4a2d8f9b0e3c6d5a1f7e4b9c0

For deployment assistance, contact Fortinet Technical Assistance Center (TAC) or certified partners. System administrators should review the FortiOS 5.6.8 Release Notes for upgrade path requirements.


: Fortinet Security Advisory FG-IR-24-37011 (July 2024)
: FortiGate 3980E Hardware Compatibility Matrix (2024 Q3)
: FortiOS Extended Support Program Technical Brief

This article synthesizes technical specifications from Fortinet’s official documentation. Always consult product-specific release notes before deployment.

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