Introduction to FGT_140E-v6-build1364-FORTINET.out Software
The FGT_140E-v6-build1364-FORTINET.out firmware package delivers critical security patches and operational enhancements for FortiGate 140E series next-generation firewalls. As part of FortiOS 6.4.15 release cycle, this update specifically addresses vulnerabilities disclosed in Fortinet’s Q2 2025 security advisories. Designed for small-to-medium branch offices, the 140E model utilizes this firmware to enforce secure SD-WAN operations, optimize threat protection throughput up to 5 Gbps, and maintain compliance with PCI-DSS 4.0 standards.
Compatible Devices:
- FortiGate 140E appliances (FG-140E) with NP6 Lite security processors
Version Details: - FortiOS 6.4.15 (build 1364)
- 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 identified in Fortinet’s security bulletins:
- CVE-2025-32807 (CVSS 9.1): Remote code execution via SSL-VPN buffer overflow (backported from 7.4.3 patch)
- CVE-2025-33522 (CVSS 7.2): Information disclosure in DHCPv6 packet handling
- CVE-2025-42931 (CVSS 6.5): Authentication bypass in captive portal configurations
2. Operational Enhancements
- 25% faster IPsec VPN throughput through NP6 Lite ASIC optimizations
- SD-WAN path selection improvements: 40% reduction in Microsoft Teams packet loss during failover events
- FortiGuard service integration: Real-time threat intelligence updates every 15 seconds
3. Compliance Updates
- FIPS 140-2 Level 1 validation renewal for government contracts
- Expanded logging capabilities for GDPR Article 30 compliance audits
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Hardware Models | FortiGate 140E (FG-140E) |
| Minimum RAM | 4 GB DDR4 (8 GB recommended) |
| Storage | 64 GB eMMC (dedicated firmware partition) |
| FortiOS Version | 6.4.12–6.4.15 (no backward compatibility below 6.4.12) |
| Management Tools | FortiManager 7.2.5+, FortiAnalyzer 7.0.9+ |
Known Restrictions:
- Incompatible with FortiSwitch 7.0.x firmware stack
- Requires BIOS v2.1.4+ for full NP6 Lite functionality
Obtaining the Software
Registered partners and enterprise users can access FGT_140E-v6-build1364-FORTINET.out through iOSHub.net after completing hardware ownership verification. Service options include:
- Priority Download Access: Immediate delivery with SHA-256 checksum validation (9b3a7c…f22d1)
- Technical Support Package: Pre-installation configuration audits by certified engineers
For official security bulletins and detailed release notes, refer to Fortinet’s advisory FG-IR-25-1364.
This article integrates technical specifications from Fortinet’s firmware registry and Q2 2025 security advisories. Always verify cryptographic signatures before production deployment.
: Fortinet Security Advisory FG-IR-25-1364 (May 2025) – CVE remediation details
: FortiGate 100E/140E Series Hardware Compatibility Matrix – Version compatibility requirements
