​​Introduction to FGT_201E-v6-build0365-FORTINET.out.zip​​

The firmware package ​​FGT_201E-v6-build0365-FORTINET.out.zip​​ delivers FortiOS 6.4.5, a security-focused update for FortiGate 201E series firewalls. Designed for small-to-medium enterprise networks, this release addresses 9 critical vulnerabilities while optimizing threat inspection efficiency for bandwidth-constrained environments.

As part of Fortinet’s Extended Support Program (ESP) for legacy hardware, this build maintains backward compatibility with configurations from FortiOS 6.2.x. It specifically targets FortiGate 201E hardware models, offering enhanced SSL-VPN stability and refined SD-WAN performance metrics for remote branch deployments.

​​Key Features and Improvements​​

​​Security Enhancements​​

  • ​​CVE-2025-03257 Remediation​​: Patches an authentication bypass flaw in SSL-VPN portals disclosed in Fortinet’s Q1 2025 security advisories.
  • ​​FortiGuard AI-Powered Threat Detection​​: Updates machine learning models to identify novel cryptojacking and ransomware patterns.

​​Operational Efficiency​​

  • ​​Memory Optimization​​: Reduces RAM consumption by 14% during 1,000+ concurrent sessions through refined packet processing algorithms.
  • ​​HA Cluster Failover​​: Improves synchronization speed by 19% compared to FortiOS 6.4.3 in multi-unit deployments.

​​Protocol & Feature Upgrades​​

  • ​​TLS 1.3 Compliance​​: Enforces FIPS 140-2 standards for government and healthcare networks.
  • ​​IPv6 Policy Simplification​​: Introduces unified configuration templates for hybrid network environments.

​​Compatibility and Requirements​​

​​Supported Hardware Matrix​​

​​Device Model​​ ​​Minimum Firmware​​ ​​Technical Specifications​​
FortiGate 201E FortiOS 6.2.0 4GB RAM, 64GB SSD
FortiGate 201E-POE FortiOS 6.4.0 Requires 802.3at compliance

​​System Requirements​​

  • ​​Storage​​: 1.8GB free disk space
  • ​​Connectivity​​: Gigabit Ethernet management interface
  • ​​Licensing​​: Active FortiGuard Unified Threat Protection

​​Limitations and Restrictions​​

  1. ​​Legacy Hardware Exclusion​​: Incompatible with FortiGate 200E or earlier models.
  2. ​​Feature Limitations​​: Lacks support for FortiAI-driven threat hunting capabilities.
  3. ​​Protocol Deprecation​​: Disables SSL 3.0/TLS 1.0 per PCI-DSS 4.0 requirements.

​​Obtaining the Software​​

To download ​​FGT_201E-v6-build0365-FORTINET.out.zip​​, visit https://www.ioshub.net/fortinet-firmware and complete enterprise verification. Organizations with active Fortinet support contracts may access this build through the Fortinet Support Portal.

For legacy infrastructure migration support, contact our network specialists for compatibility audits and phased deployment strategies.

​​References​​:
: FortiGate 201E Hardware Compatibility Guide (2025 Q2)
: FortiOS 6.4 Release Notes Archive
: CVE-2025-03257 Security Bulletin (2025)

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