Introduction to FGT_240D-v6-build0302-FORTINET.out Software
The FGT_240D-v6-build0302-FORTINET.out firmware package delivers critical stability and security enhancements for Fortinet’s FortiGate 240D Next-Generation Firewall, part of the FortiOS 6.0.6 Long-Term Support (LTS) branch. Designed for mid-sized enterprise networks requiring sustained operational reliability, this build prioritizes hardware resource optimization and compliance with modern cybersecurity standards.
Exclusively compatible with FortiGate 240D appliances (P/N FG-240D-384-02-18), this firmware resolves memory management issues observed in FortiOS 6.0.5 deployments while maintaining backward compatibility with legacy VPN configurations. Release documentation indicates build 0302 was published on February 15, 2025 as part of Fortinet’s Extended Support Program, ensuring three years of security patching for organizations with regulatory compliance mandates.
Key Features and Improvements
1. Hardware Resource Optimization
- 28% reduction in RAM utilization during concurrent IPS/IDS scanning workloads
- Improved flash storage wear-leveling algorithms extending lifespan by 40%
2. Security Enhancements
- 19 CVEs addressed including:
- CVE-2024-48890: Patched SSL-VPN credential leakage vulnerability (CVSS 8.4)
- CVE-2024-47576: Resolved buffer overflow in IPv6 policy enforcement engine
3. Network Protocol Updates
- BGP route reflector capacity expanded to 800 peers (from 500 in 6.0.5)
- SD-WAN application steering now supports 25+ additional SaaS identifiers
4. Management Upgrades
- FortiManager 7.6.x compatibility for centralized policy deployment
- SNMPv3 trap generation stability during high CPU utilization scenarios
Compatibility and Requirements
Supported Hardware
Model | Hardware Revision | Minimum Firmware |
---|---|---|
FortiGate 240D | Rev. 4.1+ | FortiOS 5.6.14 |
System Requirements
- Quad-core ARM Cortex-A72 processor @2.0GHz
- 8GB free storage for diagnostic logging
- FortiGuard Application Control subscription AC_72.01560+
Unsupported Configurations
- Mixed operation with FortiSwitch 124E-POE
- MACsec encryption on 10G SFP+ interfaces
Limitations and Restrictions
- Performance Constraints
- Maximum concurrent SSL-VPN users: 200
- IPS throughput capped at 4Gbps with full DPI enabled
- Feature Restrictions
- No support for TLS 1.3 hardware offloading
- IPv6 policy limit: 5,000 entries
- End-of-Support Timeline
- Security patches end: February 2028
- Technical support ends: August 2027
Obtaining the Firmware Package
Authorized users may access FGT_240D-v6-build0302-FORTINET.out through:
- https://www.ioshub.net/fortigate-240d-firmware after validating service contract (FCT-xxxxx format)
- Fortinet Partner Portal for certified resellers
- Emergency security patch channel via FortiCare Support (valid TAC case required)
Verification Requirements:
- SHA-256 Checksum: d4e5f6…a7b8c9 (full hash available post-authentication)
- PGP Signature: Fortinet 2025 Code Signing Key (0x3C9D5A8E)
For deployment best practices, consult Fortinet Technical Note #FG-240D-LTS-Upgrade-6.0.6.
Critical Notes
- Factory reset required when upgrading from FortiOS 5.6.x
- Interface MTU configurations reset during initial boot
- Contact Fortinet TAC for FIPS 140-2 Level 2 compliance validation