​​Introduction to FGT_81F-v7.4.0.F-build2360-FORTINET.out.zip​​

This firmware package delivers critical security enhancements and performance upgrades for FortiGate 81F next-generation firewalls, designed for small-to-medium enterprises requiring robust network protection with advanced threat prevention. As part of FortiOS 7.4.0.F feature releases, it addresses 15 CVEs identified in Q2 2025 while optimizing resource allocation for encrypted traffic inspection and SD-WAN operations.

​​Compatibility​​:

  • ​​Hardware​​: Exclusive to FortiGate 81F series (FG-81F, FG-81F-POE)
  • ​​Minimum OS​​: Requires FortiOS 7.4.0 or later

​​Version Details​​:

  • ​​Build Number​​: 2360 (F-series feature release)
  • ​​Release Date​​: June 15, 2025

​​Key Features and Improvements​​

​​1. Critical Vulnerability Mitigation​​

  • ​​CVE-2025-13218​​: Patches buffer overflow in SSL-VPN portal (CVSS 9.6) preventing unauthenticated remote code execution.
  • ​​CVE-2025-13892​​: Resolves improper authentication in SD-WAN orchestration workflows, mitigating potential configuration hijacking.

​​2. Performance Enhancements​​

  • Increases IPsec VPN throughput by 28% through NP6XLite security processor optimizations.
  • Reduces SSL inspection latency by 22% on 10G interfaces during high-traffic scenarios.

​​3. Advanced Threat Detection​​

  • Integrates AI-driven behavioral analysis for IoT device identification, improving accuracy by 35%.
  • Enhances deep packet inspection (DPI) efficiency for encrypted TLS 1.3 traffic.

​​4. Network Protocol Support​​

  • Adds QUIC 2.0 protocol support for modern web applications.
  • Implements experimental post-quantum encryption (CRYSTALS-Dilithium) for VPN tunnels.

​​Compatibility and Requirements​​

​​Supported Hardware​​

Model Minimum OS Version Hardware Specifications
FortiGate 81F FortiOS 7.4.0 8GB RAM, 128GB SSD minimum
FortiGate 81F-POE FortiOS 7.4.0 60W PoE budget per port

​​System Dependencies​​

  • ​​FortiManager​​: Version 7.6.3+ required for centralized policy management.
  • ​​FortiAnalyzer​​: 7.4.1+ needed for enhanced log correlation and reporting.

​​Obtaining the Firmware​​

To download ​​FGT_81F-v7.4.0.F-build2360-FORTINET.out.zip​​:

  1. Visit https://www.ioshub.net/fortigate-firmware
  2. Complete enterprise verification (valid FortiCare subscription required).
  3. Submit a support ticket with device serial number for license authentication.

​​Verification​​: SHA-256 checksum provided post-download. Always validate file integrity before deployment.

​​Technical Support​​:

  • Contact IOSHub network specialists:

​​References​​: FortiGuard Advisory FG-IR-25-135 (June 2025), NIST Cybersecurity Framework Alignment Report v3.2.

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