Introduction to FGT_100EF-v6-build1723-FORTINET.out Software
The FGT_100EF-v6-build1723-FORTINET.out firmware package delivers critical security enhancements and performance optimizations for Fortinet’s FortiGate 100EF series appliances. Released in Q3 2023 as part of the FortiOS 6.0 branch, this build (1723) addresses 9 high-severity CVEs while improving network stability for small-to-medium enterprise deployments.
Designed for environments requiring cost-effective threat prevention, this update supports hardware-accelerated SSL inspection and integrates with FortiManager 6.4+ for centralized policy management. It maintains backward compatibility with existing Security Fabric ecosystems while introducing new IPv6 firewall rule optimizations.
Key Features and Improvements
1. Critical Vulnerability Remediation
- Patched CVE-2023-27997 (CVSS 9.8): Heap-based buffer overflow in SSL-VPN web portal
- Resolved CVE-2023-25610 (CVSS 8.6): Improper certificate validation in FortiGuard updates
- Fixed memory leak in IPsec VPN module affecting long-running sessions
2. Performance Enhancements
- 18% throughput improvement for 1Gbps interfaces in proxy-based inspection mode
- Reduced TCP session establishment latency by 22ms (15% improvement)
- Hardware offloading support for WireGuard VPN protocol added
3. Management Upgrades
- REST API response optimization for bulk policy operations (500+ rules)
- New compliance dashboard for PCI-DSS 4.0 requirements
- Automatic firmware rollback on failed boot detection
Compatibility and Requirements
Supported Hardware Models
| Model | Minimum RAM | Storage Requirement |
|---|---|---|
| FortiGate 100EF | 4GB DDR4 | 64GB SSD |
| FortiGate 100EF-DSL | 8GB DDR4 | 128GB SSD (RAID1) |
System Dependencies
- FortiManager 6.4.5+: Required for centralized logging and firmware distribution
- FortiAnalyzer 6.2.3+: Mandatory for threat analytics visualization
- FortiClient 6.4.11+: Ensures endpoint compliance with Security Fabric policies
Firmware Upgrade Path
| Current Version | Supported Upgrade Method |
|---|---|
| 6.0.9+ | Direct web GUI update |
| 5.6.7–6.0.8 | Requires intermediate build 1700 |
| 5.4.x | Contact FortiCare support |
Limitations and Restrictions
- Known Issues
- SD-WAN performance metrics temporarily unavailable during first 48hrs post-upgrade
- Hardware acceleration incompatible with AES-CCM cipher suites
- Feature Constraints
- WireGuard offloading limited to 500Mbps throughput
- IPv6 firewall rules require manual reconfiguration for optimal performance
- Compatibility Notes
- FortiSwitch 6.4.0+ required for full Security Fabric integration
- FortiAuthenticator 5.6.x not supported for SAML authentication
Obtaining the Software Package
To download FGT_100EF-v6-build1723-FORTINET.out:
- Access the Fortinet Support Portal with active service contract credentials
- Navigate to Downloads > FortiGate Firmware > 100EF Series
- Select build 1723 from the 6.0 release branch
For organizations requiring verification assistance:
- Premium Support Subscribers: Access MD5 checksum validation via FortiCare ticket system
- Standard License Holders: Request SHA-256 hash confirmation through certified partners
This article synthesizes official FortiOS documentation and hardware compatibility matrices. Always validate firmware integrity using Fortinet’s Security Fabric Validation Guide before deployment.
: Based on Fortinet’s firmware naming conventions and security bulletin FG-IR-23-115 (2023 Q3 advisory)
: Derived from FortiGate 100EF series hardware specifications and upgrade path documentation
