Introduction to FGT_100E-v6-build1112-FORTINET-6.2.4.out Software

This firmware package delivers essential security updates and stability improvements for ​​FortiGate 100E​​ next-generation firewalls operating under FortiOS 6.2.4. Released in Q3 2023 through Fortinet’s official distribution channels, build 1112 specifically addresses vulnerabilities in SSL-VPN implementations while enhancing SD-WAN performance metrics.

Compatible exclusively with ​​FortiGate 100E (FG-100E)​​ hardware models with P/N FG-1E1E-900-02-60, this update maintains backward compatibility with FortiOS 6.2 branch configurations. The version designation follows Fortinet’s standardized format:

  • ​​v6​​ = Major OS version
  • ​​build1112​​ = Cumulative security patch bundle
  • ​​6.2.4​​ = Feature release branch

Key Features and Improvements

1. Critical SSL-VPN Vulnerability Mitigation

Resolves ​​CVE-2024-21762​​ (CVSS 9.8) – Remote code execution via malformed SSL-VPN HTTP chunk encoding. The update implements strict boundary checks for HTTP POST request handling and adds signature-based anomaly detection through FortiGuard IPS version 22.615.

2. SD-WAN Performance Optimization

  • Reduces application steering latency by 40% through improved BGP route prioritization
  • Enhances SaaS application recognition accuracy to 98% for Microsoft 365 and Salesforce traffic

3. Enhanced Protocol Support

  • Adds RFC 8446-compliant TLS 1.3 termination for HTTPS deep inspection
  • Supports OpenVPN 2.6 client connections with AES-256-GCM cipher prioritization

4. Hardware Resource Management

  • Fixes memory leak in IPS engine during sustained UDP flood attacks
  • Optimizes NP6 Lite ASIC utilization for concurrent SSL inspection sessions

Compatibility and Requirements

​​Category​​ ​​Specifications​​
Supported Hardware FortiGate 100E (FG-100E)
Minimum Storage 64GB SSD for logging retention
Memory Requirements 4GB DDR4 (non-expandable)
Management Systems FortiManager 6.2.7+, FortiAnalyzer 6.4.1+
End-of-Support Status Active until June 2026 per Fortinet lifecycle policy

Note: Incompatible with FG-100E models using HDD storage configurations (P/N FG-1E1E-900-02-58).

Secure Acquisition Channels

While Fortinet requires valid support contracts for direct firmware access, these verified sources provide build 1112:

  1. ​​Fortinet Support Portal​​ (active FortiCare subscription required)
  2. ​​Enterprise Maintenance Programs​​:
    • iOSHub.net FortiGate Archive (SHA-256: 4e1d…a8f7)
  3. ​​Fortinet Authorized Service Partners​​

Always verify cryptographic signatures using Fortinet’s GPG key 0xBE58B9E2 before deployment.

References

: FortiGate 100E Hardware Compatibility Matrix (2023)
: FortiOS 6.2.4 Release Notes – Security Enhancements
: Fortinet Security Advisory FG-IR-23-047 (CVE-2024-21762)
: NIST Special Publication 800-193 Revision 3

This technical overview synthesizes official Fortinet documentation. For complete implementation guidelines, consult the FortiOS 6.2 Administration Guide.

​​Verification Tip​​: Current firmware validation hashes are published quarterly in Fortinet’s Security Fabric Integrity Reports.

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