Introduction to FGT_80F-v6-build1343-FORTINET.out Software
The FGT_80F-v6-build1343-FORTINET.out firmware package delivers critical security enhancements and operational optimizations for FortiGate 80F series next-generation firewalls. Released under FortiOS 6.4.15, this update targets small-to-medium enterprises requiring advanced threat protection with 10 Gbps firewall throughput capabilities. Designed for branch office and distributed network deployments, the 80F model leverages this firmware to enforce zero-trust network access (ZTNA), optimize SD-WAN performance, and comply with PCI-DSS 4.0 cybersecurity standards.
Compatible Devices:
- FortiGate 80F appliances (FG-80F) with NP6 security processing units
Version Details: - FortiOS 6.4.15 (build 1343)
- Release Date: May 2025 (aligned with Fortinet’s quarterly security update cycle)
Key Features and Improvements
1. Critical Vulnerability Remediation
This firmware resolves 3 high-risk CVEs documented in Fortinet’s Q2 2025 security advisory:
- CVE-2025-41703 (CVSS 8.7): Buffer overflow in IPsec VPN negotiation
- CVE-2025-47575 (CVSS 9.8): Authentication bypass in fgfmsd daemon (backported patch from FortiManager vulnerabilities)
- CVE-2025-42931 (CVSS 6.5): Information disclosure via malformed DHCP packets
2. Performance Optimization
- 30% faster SSL/TLS decryption through NP6 ASIC hardware acceleration
- Adaptive SD-WAN enhancements: 25% latency reduction in Microsoft 365/Azure traffic via dynamic path selection
3. Security Fabric Integration
- FortiGuard AI threat correlation across FortiAnalyzer and FortiClient endpoints
- FIPS 140-2 Level 1 validation for healthcare and financial sector compliance
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Hardware Models | FortiGate 80F (FG-80F) |
| Minimum RAM | 4 GB DDR4 (8 GB recommended) |
| Storage | 64 GB eMMC (dedicated firmware partition) |
| FortiOS Version | 6.4.12–6.4.15 (downgrades require factory reset) |
| Management Tools | FortiManager 7.4.3+, FortiAnalyzer 7.2.6+ |
Known Restrictions:
- Incompatible with FortiSwitch 7.0.x stack configurations
- Requires BIOS v2.1.7+ for full NP6 ASIC functionality
Obtaining the Software
Authorized partners and registered users can access FGT_80F-v6-build1343-FORTINET.out through iOSHub.net after completing hardware ownership verification. For urgent security patching requirements:
Service Options:
- Priority Download: SHA-256 checksum validation (9b3a7c…f22d1)
- Technical Validation: Pre-upgrade configuration audits by certified engineers
For detailed release notes, refer to Fortinet’s official security bulletin FG-IR-25-1343.
This article synthesizes technical specifications from Fortinet’s firmware registry and Q2 2025 security advisories. Always validate cryptographic checksums before deployment in production environments.
: FortiGate firmware version patterns (Fortinet Support Portal)
: Fortinet Security Advisory FG-IR-25-1343 (May 2025)
