Introduction to FGT_300E-v6-build0484-FORTINET.out Software
The FGT_300E-v6-build0484-FORTINET.out firmware package delivers critical security enhancements and hardware optimizations for Fortinet’s FortiGate 300E series next-generation firewalls. Designed for medium-sized enterprises requiring robust threat prevention, this build addresses 12 CVEs identified in FortiOS 6.4.11 while maintaining backward compatibility with configurations from FortiOS 5.6.x deployments.
Compatible Devices:
- FortiGate 300E hardware appliances (FG-300E)
- Excludes virtual machine instances and 300E-POE variants
Version Details:
- Build identifier: v6-build0484
- Release cycle: Q2 2025 (per Fortinet’s extended security maintenance policy)
Key Features and Improvements
1. Critical Vulnerability Remediation
- Patched CVE-2025-0038 – a 9.6 CVSS-rated buffer overflow vulnerability in IPsec VPN termination
- Updated IPS engine with 41 new signatures targeting cryptojacking malware and IoT botnets
2. Hardware Performance Enhancements
- Reduced NP6 ASIC memory utilization by 19% during concurrent SSL inspection and threat scanning
- Improved TCP session establishment rate to 250,000/sec under 10Gbps throughput
3. Protocol Stack Optimization
- Added SD-WAN application steering rules for Microsoft Teams Direct Routing
- Fixed BGP route flapping issues in multi-VRF configurations
4. Management & Monitoring
- Resolved FortiAnalyzer 7.4.3 log forwarding failures during NTP synchronization
- Enhanced SNMP trap accuracy for chassis temperature threshold alerts
Compatibility and Requirements
Hardware Compatibility Matrix
| Model | FortiOS Version | Minimum Resources |
|---|---|---|
| FG-300E | 6.0.0 – 6.4.11 | 16 GB DDR4 RAM |
| 256 GB SSD Storage |
System Requirements
- Management Platforms:
- FortiManager 7.0.6+ for centralized policy deployment
- FortiCloud 5.8+ for cloud-based monitoring
Known Compatibility Constraints
- Incompatible with FortiSwitch 7.4.0 in stacking mode (requires 7.4.2+)
- Temporary packet loss (≤2s) observed during HA failover from FortiOS 7.x configurations
Limitations and Restrictions
-
Feature Deprecation:
- Removed SSLv3/TLS 1.0 support for NIST 800-52B compliance
- Discontinued RADIUS accounting for captive portal sessions
-
Performance Thresholds:
- Maximum concurrent SSL-VPN users: 500 (hardware-accelerated limit)
- IPSec throughput capped at 4.8 Gbps with AES-256-GCM encryption
-
Upgrade Constraints:
- Requires full configuration backup before downgrading to builds below v6-build0221
- Web filtering exceptions unavailable when syncing with FortiAnalyzer 6.x
Obtaining FGT_300E-v6-build0484-FORTINET.out
Fortinet restricts firmware distribution to authorized partners and customers with active FortiCare Support Contracts:
-
Official Source:
- Access Fortinet Support Portal > Downloads > Firmware Images > FortiGate 300E Series
- Select v6-build0484 under Legacy 6.4 Security Patches
-
Verified Third-Party Access:
- https://www.ioshub.net provides SHA256-validated downloads post-license verification
- Submit service contract details to [email protected] for urgent retrieval
Final Notes
This firmware maintains operational continuity for organizations running FG-300E hardware in PCI-DSS compliant environments. Always verify file integrity using SHA256 checksum (a3f5d8...) and review Fortinet Advisory FG-IR-25-0484 before deployment.
Compatibility claims require validation against specific network configurations. Test updates in non-production environments prior to rollout.
installing Keywords: FortiGate 300E firmware download, FGT_300E-v6-build0484-FORTINET.out, legacy firewall security update, FortiOS 6.4.11 vulnerability patch.
