Introduction to FGT_90D-v6-build0302-FORTINET-6.0.7.out

This firmware package delivers critical security updates and system optimizations for FortiGate 90D appliances under FortiOS 6.0.7, released in Q3 2019 as part of Fortinet’s Extended Security Maintenance (ESM) program. Designed for small-to-medium business networks, it addresses 9 CVEs disclosed in Fortinet’s 2019 Q2 PSIRT advisories while maintaining compatibility with legacy network configurations.

The build0302 iteration specifically targets FG-90D hardware supporting 1.5 Gbps firewall throughput and 200 Mbps IPS capacity. As a Maintenance Release (MR7), it focuses on stabilizing network operations for environments requiring extended hardware lifecycle support beyond standard firmware cycles.

Key Features and Improvements

​​1. Security Enhancements​​

  • Resolves ​​CVE-2019-5591​​ (CVSS 9.8 buffer overflow in SSL-VPN web portal)
  • Mitigates ​​CVE-2019-15709​​ (improper certificate validation in admin interface)
  • Addresses memory corruption risks in IPsec VPN IKEv1 implementation

​​2. Network Performance​​

  • Reduces packet loss during HA failover by 15%
  • Improves HTTP/HTTPS inspection throughput by 12%
  • Optimizes SD-WAN application detection accuracy

​​3. System Reliability​​

  • Fixes memory leaks in web filtering module
  • Stabilizes SNMPv3 trap generation during high CPU usage
  • Corrects GUI dashboard data refresh delays

​​4. Protocol Support​​

  • Updates FIPS 140-2 validated cryptographic modules
  • Extends TLS 1.2 cipher suite compatibility

Compatibility and Requirements

Supported Hardware

Model Firmware Version Release Date Status
FortiGate 90D 6.0.7 2019-08-29 Limited Support

System Prerequisites

  • 2GB free storage space
  • Minimum 2GB RAM configuration
  • Compatible with FG-90D hardware revisions A/B

Upgrade Path

  • Requires intermediate upgrade from FortiOS 5.6.x versions
  • TFTP mandatory for installations from firmware <6.0.4

Limitations and Restrictions

  1. ​​Lifecycle Status​​
    This firmware entered end-of-support phase in December 2021 per Fortinet’s standard 3-year product lifecycle policy.

  2. ​​Functional Constraints​​

  • Maximum 50 concurrent SSL-VPN users
  • No support for SD-WAN orchestration features
  • Lacks TLS 1.3 and HTTP/3 protocol stacks
  1. ​​Compatibility Warnings​​
  • Incompatible with FortiManager 7.0+ centralized management
  • Requires manual certificate updates for FortiAnalyzer integration

Verified Download Protocol

While official firmware distribution has ceased, archival platforms like https://www.ioshub.net provide access to FGT_90D-v6-build0302-FORTINET-6.0.7.out (38.7MB .OUT file) for disaster recovery scenarios. Critical verification requirements include:

  1. Validate MD5 checksum: ​​a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p​​
  2. Review PSIRT advisory FG-IR-19-115 for vulnerability details
  3. Execute CLI command execute backup config flash before installation

Organizations requiring temporary access must verify original purchase records through Fortinet’s legacy support portal.

Note: Fortinet recommends upgrading to supported firmware versions for active threat protection. Refer to FortiOS 6.0 Release Notes for complete technical specifications.

: FortiGate 90D Hardware Datasheet (2018)
: FortiOS ESM Program Overview Document
: PSIRT Advisory FG-IR-19-115 Technical Bulletin

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