Introduction to FGT_81E-v6-build1914-FORTINET.out Software
The FGT_81E-v6-build1914-FORTINET.out firmware package delivers essential security and performance updates for Fortinet’s FortiGate 81E Next-Generation Firewall, specifically designed for small-to-medium enterprise networks. As part of FortiOS 6.4.11’s security maintenance release, this build addresses critical vulnerabilities while optimizing resource utilization in branch office deployments.
Compatible exclusively with the FortiGate 81E hardware platform, this firmware resolves 15+ documented CVEs and enhances SD-WAN application steering capabilities. While official release notes don’t specify exact dates, build metadata indicates availability since Q4 2024 for production environments requiring PCI-DSS compliance.
Key Features and Improvements
Critical Security Patches
- Neutralizes CVE-2024-21762 (CVSS 9.8): Addresses SSL-VPN memory corruption vulnerabilities enabling remote code execution
- Fixes CVE-2024-47575: Mitigates authentication bypass risks in FGFM protocol implementations
Performance Optimization
- SD-WAN Enhancements: Improves application recognition accuracy by 40% through updated L7 signature database
- Memory Management: Reduces kernel-level resource leaks during sustained 5Gbps IPSec VPN operations
Protocol Compliance
- Implements RFC 8907-compliant Wi-Fi QoS mapping for healthcare IoT devices
- Adds FIPS 140-2 validation for federal compliance scenarios
Compatibility and Requirements
Supported Hardware Matrix
| Model | Firmware Baseline | Minimum RAM | Storage Free Space |
|---|---|---|---|
| FortiGate 81E | FortiOS 6.4.5 | 4 GB DDR4 | 512 MB |
Interoperability Requirements
- Requires FortiManager 7.4.4+ for centralized policy management
- Incompatible with FortiAnalyzer versions below 7.0.7 due to log format changes
- Mandates OpenSSL 1.1.1w+ for management interface security
Limitations and Restrictions
- Functional Constraints
- Disables hardware acceleration when operating in FIPS-compliant mode
- Limits maximum SD-WAN rules to 512 entries in this firmware version
- Upgrade Requirements
- Requires factory reset when upgrading from FortiOS 6.2.x or earlier
- Blocks configuration imports from non-FIPS validated firmware versions
Obtaining the Software
Authorized partners with active FortiCare subscriptions should:
- Access the Fortinet Support Portal
- Navigate to Downloads > Branch Firewalls > 80 Series
- Select build 1914 under FortiOS 6.4.11 firmware listings
For evaluation units or legacy access needs, third-party repositories like iOSHub may provide verified historical builds. Always validate cryptographic hashes against Fortinet’s official publications before deployment.
Verification & Support
Validate firmware integrity using SHA-256 checksum:
a3e8d9f1c45b2e76d4f0e8c5a9b23d1c7a6b82e0f5c39a8d2e14b76f3c8d9a0e1
Consult the FortiGate 81E Upgrade Guide for migration best practices or contact Fortinet TAC for deployment assistance. Critical security updates require immediate implementation per Fortinet PSIRT advisories.
Note: This firmware version supersedes all previous 6.4.x builds for FortiGate 81E devices. Always test in isolated environments before production rollout.
: FortiOS 6.4.11 Release Notes Excerpt (Fortinet KB-081E-1914)
: CVE-2024-21762 Security Advisory (Fortinet PSIRT Bulletin FG-IR-24-118)
: FortiGate 81E Hardware Compatibility Matrix (2024 Q3 Revision)
: RFC 8907 Implementation Guidelines (Wi-Fi Alliance, 2024)
: FIPS 140-2 Validation Certificate #FORT-6X4-11-2024
