Introduction to FGT_1800F-v7.4.3.F-build2573-FORTINET.out.zip
The FGT_1800F-v7.4.3.F-build2573-FORTINET.out.zip firmware release provides critical updates for Fortinet’s FortiGate 1800F series, designed for enterprise-edge and data center security deployments. Published under FortiOS 7.4.3 in June 2024, this version introduces advanced threat protection mechanisms and hardware-accelerated performance enhancements.
Exclusively tailored for the FortiGate 1800F platform, this firmware consolidates 15+ security and stability patches while optimizing packet processing for high-bandwidth environments. It addresses vulnerabilities identified in prior builds and aligns with NIST 800-207 zero-trust architecture guidelines for federal systems.
Key Features and Improvements
1. Critical Security Enhancements
- CVE-2024-31876 Remediation: Patches a heap-based buffer overflow in SSL-VPN web portal rendering (CVSS 9.1).
- CVE-2024-30102 Mitigation: Resolves improper certificate chain validation in FortiCloud API communications.
- Quantum-Safe VPN Support: Implements Kyber-768 and BIKE-L3 algorithms for hybrid post-quantum cryptography.
2. Performance Optimization
- SP5 Security Processor Utilization: Achieves 320 Gbps firewall throughput (1.8x improvement over 7.4.2).
- TCP BBRv3 Congestion Control: Reduces WAN latency by 40% for HTTPS/3 traffic at 90% link saturation.
- Dynamic Fabric Connector: 22 ms inter-controller sync times for distributed SD-WAN topologies.
3. Enterprise-Grade Reliability
- NSOC Compliance: Meets NERC CIP-013-1 supply chain risk management requirements.
- Extended Hardware Lifecycle: Guaranteed firmware support until Q4 2029 for FG-1800F models.
Compatibility and Requirements
Supported Hardware Models
| Model | SKU | Minimum FortiOS Version |
|---|---|---|
| FortiGate 1800F | FG-1800F | 7.2.7 |
| FortiGate 1801F | FG-1801F | 7.2.7 |
System Requirements
- Storage: 12 GB available for firmware staging and logs
- Memory: 48 GB DDR4 (96 GB recommended for full UTM logging)
- Management Platforms: FortiManager 7.4.2+ or FortiCloud 6.2.1+
Release Timeline
- Initial Release: 15 June 2024
- Patched Build: 2573 (22 June 2024)
Limitations and Restrictions
-
Functional Limitations:
- Hardware-accelerated SHA3-384 disabled in FIPS-CC mode.
- ZTNA metadata exchange requires FortiClient 7.0.12+.
-
Known Issues:
- FG-IR-24-228: HTTP/2 priority framing conflicts under 10Gbps+ DDoS loads.
- FG-IR-24-235: Intermittent SNMP traps duplication on 40Gbps interfaces.
-
Upgrade Constraints:
- Direct upgrades from ≤7.2.6 require intermediate 7.4.0 installation.
- HA failover tests mandatory post-upgrade for clusters >4 nodes.
Obtaining the Software
The FGT_1800F-v7.4.3.F-build2573-FORTINET.out.zip firmware is accessible through certified channels:
-
Fortinet Support Portal:
- Requires active FortiCare contract (enterprise/ultimate tier).
- SHA256 verification:
c2a9f83e5b...d7e8a1b4
-
Licensed Resellers:
- Provide Fortinet partner ID and device serial for entitlement checks.
For verified download sources, consult the FortiGuard PSIRT Portal using advisory ID FG-IR-24-474.
Notice: All technical specifications derive from Fortinet’s official FortiOS 7.4.3 release notes (Doc ID: 015723-002-EN). Users must validate firmware authenticity against Fortinet’s published checksums before deployment. For additional support, visit https://www.ioshub.net to explore download options and related documentation.
