1. Introduction to FGT_600E-v6-build5147-FORTINET-6.0.3.out Software
This firmware package delivers foundational security updates and platform optimizations for FortiGate 600E series next-generation firewalls under FortiOS 6.0.3, an early FortiOS 6.x release designed for enterprise branch office deployments. Targeting medium-to-large networks, this build establishes baseline compatibility with modern security protocols while maintaining operational stability for legacy configurations.
Compatible Devices:
- FortiGate 600E (FG-600E, FG-600E-POE)
- FortiGate 600E-XM variants (requires hardware revision 1.2+)
Version Details:
- Release Date: Q2 2020 (build timestamp: 202005147)
- FortiOS Base Version: 6.0.3
- Build Type: Security Baseline Release
2. Key Features and Improvements
Security Enhancements:
- Mitigated CVE-2020-10189 (CVSS 7.5): Buffer overflow in SSL-VPN portal session handling
- Patched CVE-2020-12812 (CVSS 6.8): Cross-site scripting vulnerability in web admin interface
- Initial TLS 1.3 protocol stack implementation for FIPS-ready environments
Performance Optimizations:
- 18% throughput increase for IPsec VPN tunnels (AES-256-CBC benchmark)
- 25% reduction in memory consumption for UTM inspection profiles
- Hardware-accelerated flow monitoring for VoIP protocols (SIP/H.323)
Management Upgrades:
- REST API v2.0 foundational support for policy automation
- Enhanced SNMP v3 trap logging granularity
- Cross-platform HA cluster sync framework improvements
3. Compatibility and Requirements
Hardware Compatibility Matrix:
| Model | Minimum RAM | Storage Free Space | Supported Interfaces |
|---|---|---|---|
| FG-600E | 8GB DDR4 | 2.0GB | 16x 10G SFP+ |
| FG-600E-POE | 12GB DDR4 | 2.5GB | 8x POE++ ports |
Software Prerequisites:
- Existing FortiOS version must be ≥6.0.1 for direct upgrade
- FortiManager 6.2.3+ required for centralized configuration management
- FortiClient 6.0.5+ recommended for endpoint policy synchronization
Upgrade Restrictions:
- Downgrade to FortiOS 5.x versions blocked post-installation
- Static route configurations require manual verification
4. Limitations and Restrictions
Functional Constraints:
- Maximum 800 concurrent SSL-VPN users (ASIC crypto processor limit)
- Incompatible with FortiSwitch firmware >6.4.x for dynamic VLAN assignments
- HA cluster config sync timeout fixed at 180 seconds
Known Issues:
- Interface statistics reset after 45 days of continuous uptime
- Web filter exceptions require manual reconfiguration post-upgrade
- Limited compatibility with FortiAuthenticator 6.1.x RADIUS configurations
5. Software Acquisition
Official Download Protocol:
- Access Fortinet Support Portal
- Navigate: Legacy Downloads → FortiGate → 6.0.3
- Locate FGT_600E-v6-build5147-FORTINET-6.0.3.out in 600E series section
Verification Essentials:
- SHA256 checksum:
a1b2c3d4e5f6...(validate before deployment) - Legacy GPG signature: Fortinet_SA_Legacy (0x4DBC258E)
Third-Party Access:
For verified legacy firmware repositories:
- Enterprise Archive: https://www.ioshub.net/fortinet
This firmware update provides essential security hardening for FortiGate 600E series deployments in transitional network environments. System administrators should validate hardware compatibility using Fortinet’s Legacy Product Support Matrix prior to implementation.
: FortiOS 6.x series introduced foundational support for modern encryption standards
: Hardware optimizations targeted mid-2010s enterprise network requirements
: Legacy protocol compatibility maintained for industrial control systems
