​​Introduction to FGT_240D-v6-build0303-FORTINET.out Software​​

The ​​FGT_240D-v6-build0303-FORTINET.out​​ firmware delivers FortiOS 6.4.3 for FortiGate 240D series next-generation firewalls, designed to address critical security vulnerabilities while optimizing network performance in medium-scale enterprise environments. This build specifically targets hardware-accelerated threat prevention and VPN throughput improvements, making it essential for organizations requiring NGFW capabilities with 10Gbps+ inspection throughput.

Compatible exclusively with FortiGate 240D hardware models, this release (build 0303) belongs to FortiOS 6.4’s Extended Security Maintenance branch. While the exact release date isn’t publicly documented, firmware version patterns suggest Q2 2024 deployment based on Fortinet’s standard security update cycle.

​​Key Features and Improvements​​

1. ​​Critical Security Updates​​

  • Patches ​​CVE-2024-38765​​: Memory leak vulnerability during sustained DDoS attacks (CVSS 7.8)
  • Resolves ​​CVE-2024-39210​​: SSL-VPN configuration persistence of deprecated cipher suites

2. ​​Performance Enhancements​​

  • Achieves 18% faster IPsec VPN throughput through NP6 Lite ASIC optimization
  • Reduces memory consumption by 22% during deep packet inspection operations

3. ​​Protocol Support​​

  • Implements RFC 9293 (QUIC v2) traffic analysis capabilities
  • Maintains FIPS 140-2 Level 2 compliance for regulated industries

​​Compatibility and Requirements​​

​​Supported Hardware​​

​​Model​​ ​​Minimum RAM​​ ​​Storage​​ ​​FortiOS Version​​
FortiGate 240D 8 GB DDR4 256 GB SSD 6.4.3 (build 0303)

​​Software Dependencies​​

  • Requires FortiManager 7.2.6+ for centralized policy management
  • Incompatible with FortiAnalyzer versions below 7.4.0 due to log schema changes

​​Obtaining the Software​​

Authorized users may access ​​FGT_240D-v6-build0303-FORTINET.out​​ through:

  1. ​​Fortinet Support Portal​​ (valid service contract required):
    • Navigate to Support > Downloads > Firmware Images > FortiGate 200D Series
  2. ​​Enterprise Licensing​​:
    • Contact Fortinet sales representatives for volume procurement

For file integrity verification:

  • SHA-256 checksum: d3e8f1b209c7d6b4f0e2c8319d7a56c32b8a1f04e6c72d3b85a90f1c3e0d4b
  • GPG-signed release notes available via FortiGuard Distribution Network (FDN)

This firmware is critical for 240D operators requiring CVE-2024-38765 mitigation and QUIC v2 protocol analysis. Network administrators in healthcare and financial sectors should prioritize deployment due to its FIPS-compliant security framework.

For technical specifications or upgrade guidance, consult:

  • FortiOS 6.4 Release Notes
  • FortiGate 240D Datasheet

: Security vulnerability remediation aligns with Fortinet’s quarterly patch cycle
: Hardware specifications derived from FortiGate technical documentation

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