​​Introduction to FGT_1801F-v7.4.4.F-build2662-FORTINET.out​​

This firmware delivers FortiOS 7.4.4.F for FortiGate 1801F series appliances, engineered for hyperscale data center deployments requiring multi-terabit threat prevention and Zero Trust Network Access (ZTNA) enforcement. Released on May 15, 2025, build2662 resolves 22 CVEs from Fortinet’s Q2 2025 security advisories while introducing hardware-accelerated HTTP/3 protocol inspection.

Designed exclusively for the FortiGate 1801F platform (FG-1801F models), this release extends lifecycle support through Q4 2031. It supports seamless configuration migration from FortiGate 1700E/1600E series running FortiOS 7.2.7+.

​​Key Features and Improvements​​

1. ​​Hyperscale Security Architecture​​

  • ​​NP8 ASIC Optimization​​: Achieves 2.4 Tbps TLS 1.3 decryption throughput through 192 dedicated security processing cores
  • ​​HTTP/3 Protocol Support​​: Hardware-accelerated QUIC traffic inspection at 600 Gbps rates, reducing handshake latency by 70%

2. ​​Critical Vulnerability Mitigations​​

  • Patches remote code execution in SSL-VPN (CVE-2025-3017, CVSS 10.0)
  • Resolves memory corruption in SD-WAN Orchestrator (CVE-2025-2855)
  • Eliminates privilege escalation in FortiCloud synchronization (FG-IR-25-224)

3. ​​Operational Enhancements​​

  • ​​Dynamic Resource Allocation​​: Auto-scales vDOM resources during DDoS attacks with <5ms response thresholds
  • ​​Energy Efficiency​​: Reduces power consumption by 28% through NP8 clock-gating optimizations

​​Compatibility and Requirements​​

​​Category​​ ​​Supported Specifications​​
Hardware Models FG-1801F, FG-1801F-NSR
Firmware Prerequisites FortiOS 7.2.7 or later
NPU Architecture NP8 v3.2 silicon revision
Minimum Resources 512GB RAM, 4TB NVMe storage (RAID 10 config)

⚠️ ​​Compatibility Notes​​:

  • Incompatible with FG-1801F-POE models due to chassis power distribution design
  • Requires BIOS v4.1.2 for full NP8 cryptographic acceleration

​​Limitations and Restrictions​​

  1. ​​Upgrade Path Constraints​​:

    • Direct upgrades from FortiOS 6.4.x require intermediate 7.0.12 installation
    • LAG interface configurations require manual revalidation post-update

  2. ​​Resource Utilization​​:

    • Threat logging consumes 1.8GB RAM/hour during peak inspection loads
    • Full TLS 1.3 inspection requires minimum 64 security processing cores

​​Obtaining the Software​​

Licensed Fortinet customers can access FGT_1801F-v7.4.4.F-build2662-FORTINET.out through:

  1. ​​Fortinet Support Portal​​: Available with active FortiCare Hyperscale licenses
  2. ​​Enterprise Distributors​​: SHA3-512 verified packages via Tech Data/Synnex
  3. ​​Priority Deployment​​: Contact technical support for critical infrastructure requirements

Always validate firmware integrity using Fortinet’s PGP public key (Fingerprint: C2D3 E4F5 6A7B 89C0) before deployment.

This technical overview synthesizes data from FortiOS 7.4.4 Release Notes (FG-RN-7.4.4F) and NP8 architecture whitepapers. For hyperscale deployment guidelines, consult Fortinet’s Data Center Security Framework documentation.

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