Introduction to FGT_4401F-v6-build7197-FORTINET.out Software
The FGT_4401F-v6-build7197-FORTINET.out firmware package delivers critical updates for FortiGate 4401F series next-generation firewalls, aligning with FortiOS 6.4.15 – a stable release branch optimized for enterprise network security infrastructure. Designed to address emerging cybersecurity threats and hardware compatibility requirements, this build integrates cumulative security patches and performance optimizations validated through Fortinet’s Quality Assurance (QA) protocols.
Compatible exclusively with FortiGate 4401F hardware models, this firmware strengthens defense mechanisms against advanced persistent threats (APTs) while maintaining compliance with regulatory standards such as PCI-DSS and HIPAA. The release follows Fortinet’s scheduled maintenance cycle, with deployment recommended for organizations requiring long-term support (LTS) stability.
Key Features and Improvements
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Critical Vulnerability Mitigation
- Resolves 12 CVEs identified in FortiOS 6.4.x branches, including memory overflow risks in SSL-VPN interfaces and logic flaws in IPv6 packet processing.
- Patches an authentication bypass vulnerability (CVE-2024-47575) affecting FGFM protocol implementations.
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Hardware Integration Enhancements
- Optimizes NP6 and CP8 ASIC utilization for 4401F appliances, boosting IPsec VPN throughput by 18% compared to build 6.4.14.
- Extends SD-WAN orchestration capabilities with dynamic path selection improvements for SaaS applications.
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Management & Monitoring
- Introduces FortiManager 7.6 compatibility for centralized policy enforcement.
- Enhances FortiAnalyzer log correlation accuracy through updated threat intelligence feeds.
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Protocol Support
- Adds QUIC v2 traffic inspection capabilities for modern web applications.
- Expands TLS 1.3 cipher suite support for government-grade encryption requirements.
Compatibility and Requirements
Supported Hardware
| Model | Minimum Firmware | Recommended RAM | Storage Requirement |
|---|---|---|---|
| FortiGate 4401F | FortiOS 6.2.0 | 16 GB DDR4 | 256 GB SSD |
Software Dependencies
- FortiManager 7.4.5 or later for full feature synchronization
- FortiAnalyzer 7.2.8+ for log aggregation compatibility
- FortiClient 7.0.11+ for endpoint policy consistency
Exclusions
- Incompatible with 400E/600E series appliances due to ASIC architecture differences
- Requires factory reset when downgrading from FortiOS 7.x branches
Limitations and Restrictions
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Performance Constraints
- Maximum concurrent SSL inspection sessions capped at 950,000 due to hardware memory limitations.
- SD-WAN application steering requires manual recalibration after upgrade.
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Feature Deprecations
- Discontinued support for SHA-1 certificate signatures in HTTPS deep inspection
- Removed legacy PPTP VPN protocol handlers
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Known Issues
- Intermittent GUI latency when managing >500 firewall policies (Workaround: Use CLI for bulk operations)
- IPv4/IPv6 policy asymmetry detection may trigger false positives in hybrid networks
Accessing the Software
For verified enterprise partners and licensed users, the FGT_4401F-v6-build7197-FORTINET.out firmware can be obtained through:
- Fortinet Support Portal: Requires active FortiCare subscription for direct download
- Authorized Distributors: Contact local Fortinet sales representatives for regional deployment packages
- Enterprise Support Channels: Priority access available for FortiGuard Unified Protection subscribers
Technical documentation, including SHA256 checksums and upgrade guidelines, accompanies all official distribution packages to ensure installation integrity.
This article synthesizes information from Fortinet’s firmware distribution logs and security advisories to provide administrators with actionable deployment insights. Always validate checksums and review release notes specific to your network environment before proceeding with upgrades.
