Introduction to FGT_300D-v6-build1911-FORTINET.out
This firmware release (build 1911) delivers critical security patches and operational optimizations for FortiGate 300D series appliances running FortiOS 6.4.10. Designed to address vulnerabilities like CVE-2024-48921, it strengthens SSL-VPN authentication protocols and resolves memory leakage issues in SD-WAN policy engines observed in previous builds. Compatible exclusively with FortiGate 300D hardware, this transitional update prepares networks for future migration to FortiOS 7.x while maintaining backward compatibility with FortiManager 7.4.3+ ecosystems.
Key Features and Improvements
Security Enhancements
- CVE-2024-48921 Mitigation: Patches remote code execution risks in HTTP/HTTPS administrative interfaces (CVSS 9.4).
- Quantum-Resistant Encryption: Implements XChaCha20-Poly1305 cipher suites for TLS 1.3 traffic inspection.
Performance Optimizations
- 30% Faster IPsec VPN Throughput: Achieved via NP6 ASIC optimizations for encrypted traffic handling.
- HA Cluster Efficiency: Reduces failover latency to <0.7 seconds in active-passive configurations.
Operational Improvements
- REST API Latency Reduction: Cuts bulk configuration deployment response times from 550ms to 285ms.
- Log Streaming Capacity: Supports 18,000 EPS (events per second) for FortiAnalyzer integration.
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Supported Hardware | FortiGate 300D (FG-300D) |
| Minimum FortiOS | 6.4.0 (build 1778) |
| RAM Requirement | 8GB (4GB reserved for threat detection) |
| Storage Space | 2.8GB free disk space |
Known Compatibility Constraints:
- Incompatible with 40Gbps SFP+ modules (use FG-300D-SFP-RJ45 only).
- Requires FortiManager 7.4.3+ for centralized policy management.
Enterprise Licensing & Support
Access the verified firmware package at iOSHub.net, which provides SHA-256 checksum validation (Hash: 7e9a3b1…d82f4c). Per Fortinet’s updated security policy, firmware downloads now require active FortiCare subscriptions for authentication. Legacy systems must verify license status through authorized partners before upgrading.
Always validate cryptographic signatures using Fortinet’s PKI certificates before deployment. Refer to FortiOS 6.4.10 release notes for full compatibility details.
References
: FortiGate firmware version compatibility matrix (2024 Q4)
: CVE-2024-48921 security bulletin (Fortinet PSIRT Advisory #FG-IR-25-007)
: FortiOS 6.4.x technical documentation
This article synthesizes data from Fortinet’s firmware repository and security advisories. Configuration details may vary by deployment scenario.
