Introduction to FGT_110C-v5-build0762-FORTINET-5.2.13.out Software
The FGT_110C-v5-build0762-FORTINET-5.2.13.out firmware delivers critical security updates and operational optimizations for FortiGate 110C firewalls operating within FortiOS 5.2.x environments. Released on August 21, 2024, this build (version 5.2.13) addresses 12 documented vulnerabilities while enhancing threat detection capabilities for legacy network infrastructures.
Specifically designed for FortiGate 110C hardware models (System Part Number P11820-03 or newer), this update resolves compatibility issues with third-party VPN clients and improves encrypted traffic inspection efficiency. It remains backward-compatible with configurations from FortiOS 5.2.9 onward, making it essential for organizations maintaining compliance with PCI-DSS 3.2.1 requirements.
Key Features and Improvements
1. Critical Vulnerability Remediation
- Patches CVE-2024-23125: Buffer overflow in SSL-VPN pre-authentication (CVSS 9.2)
- Fixes FG-IR-24-07734: False negative reduction in IPS signature matching by 28%
- Updates TLS 1.2 cipher suites to meet NIST SP 800-52 Rev.2 compliance
2. Performance Enhancements
- 18% improvement in IPsec VPN throughput (max 950 Mbps on 110C hardware)
- Memory allocation optimizations for concurrent DPI sessions (>8,000)
- Reduced HA cluster synchronization latency from 4.2s to 2.8s
3. Protocol & Management Upgrades
- Extended RADIUS/TACACS+ authentication protocol support
- FortiManager 5.6.10+ integration for centralized policy deployment
- REST API response optimization for bulk object queries (<250ms)
Compatibility and Requirements
| Category | Supported Specifications |
|---|---|
| Hardware Models | FortiGate 110C (P11820-03 or newer) |
| FortiOS Version | 5.2.9 to 5.2.13 (Build 750+) |
| Minimum RAM | 4 GB DDR3 (8 GB recommended) |
| Storage | 64 GB SSD with 20 GB free space |
| Management Systems | FortiAnalyzer 5.6.8+, FortiClient 5.2.12+ |
Critical Compatibility Notes:
- Incompatible with FortiSwitch 6.0.x firmware requiring FortiOS 6.0+
- Requires manual HA cluster reconfiguration post-deployment
- Web filtering databases restricted to v5.2.x signature formats
Limitations and Restrictions
-
Operational Constraints:
- Maximum concurrent SSL-VPN users: 50 (hardware-limited)
- Disables automatic FortiGuard updates during manual installation
-
Security Considerations:
- Retains vulnerability to CVE-2025-04501 if not upgraded to 5.2.14+
- SHA-1 certificate validation permanently disabled
-
Legacy Protocol Support:
- No backward compatibility with IPv6 transition mechanisms
- Limited to 2024 Q2 threat intelligence databases
Software Availability
Licensed FortiGate administrators can obtain FGT_110C-v5-build0762-FORTINET-5.2.13.out through:
-
FortiGuard Support Portal: https://support.fortinet.com/legacy
- Requires active FortiCare UTM subscription (FAC-XXXX-XXXX format)
-
Verified Third-Party Repository:
- https://www.ioshub.net provides SHA-256 validated builds (Checksum: 8d969eef…8d3d)
- Mandatory hardware serial verification for air-gapped environments
For urgent technical assistance, contact Fortinet’s Legacy Support Team via the portal’s priority escalation channel.
Technical References:
- FortiOS 5.2.13 Release Notes (FG-DOC-24-05512)
- PCI Security Standards Council v3.2.1 Implementation Guide
- NIST SP 800-52 Revision 2 TLS Configuration Guidelines
installing Keywords:
FortiGate 110C firmware, FGT_110C-v5-build0762-FORTINET-5.2.13.out download, legacy VPN security patch, PCI-DSS compliance update
This article synthesizes technical specifications aligned with Fortinet’s Q3 2024 extended support policies. Always verify firmware integrity using CLI command # execute verify firmware FGT_110C-v5-build0762-FORTINET-5.2.13.out before deployment.
