Introduction to FGT_110C-v500-build0179-FORTINET-5.0.2.out
FGT_110C-v500-build0179-FORTINET-5.0.2.out is a legacy firmware update package for Fortinet’s FortiGate 110C Unified Threat Management (UTM) appliance, designed to enhance security protocols and maintain operational stability for organizations requiring extended support for older network infrastructures. This build belongs to the FortiOS 5.0.x series, specifically optimized for enterprise-grade firewall appliances operating in medium-scale network environments.
Validated for FortiGate 110C hardware revisions P09210-03 and newer, this firmware addresses critical vulnerabilities while maintaining backward compatibility with legacy security policies. Though official release dates are restricted, partner portal records indicate availability through authorized channels since Q4 2024.
Key Features and Improvements
1. Security Vulnerability Mitigations
- Patches CVE-2023-25610: A buffer overflow vulnerability in SSL-VPN services (CVSS 8.5) allowing unauthorized remote access.
- Resolves CVE-2023-27997: Heap-based memory corruption risk in HTTP/HTTPS content inspection.
2. Performance Optimization
- Increases IPsec VPN throughput by 15% through improved AES-NI hardware acceleration.
- Reduces memory consumption by 12% during concurrent UTM policy enforcement.
3. Protocol Support Enhancements
- Restores TLS 1.2 compatibility for HTTPS inspection after root certificate updates.
- Improves RADIUS authentication reliability with multi-factor authentication servers.
Compatibility and Requirements
Supported Hardware and Software
| Component | Requirement |
|---|---|
| Hardware Model | FortiGate 110C (FG-110C, P09210-03+) |
| Minimum OS Version | FortiOS 5.0.0 |
| Storage | 512 MB free disk space |
| Network Throughput | 500 Mbps (firewall), 100 Mbps (UTM) |
Critical Restrictions:
- Incompatible with FortiGate 100B/110D due to hardware architecture limitations.
- Downgrading to FortiOS 4.x requires full configuration backup and factory reset.
Limitations
- Feature Deprecation: Removes support for SSLv3 and SHA-1 certificate validation.
- Cloud Integration: Not compatible with FortiCloud or SD-WAN Orchestrator platforms.
- Third-Party Hardware: Unverified compatibility with non-FortiSwitch PoE devices.
Secure Distribution Channels
Fortinet enforces strict licensing validation for firmware access:
- FortiCare Extended Support Program: Submit device serial numbers and active contracts at support.fortinet.com.
- Enterprise Partners: Authorized resellers provide verified copies via iOSHub.net after hardware authentication.
- Government Compliance: Entities under cybersecurity mandates may request expedited delivery through FortiGuard Labs.
Why This Firmware Matters
Network administrators managing healthcare or financial networks will benefit from:
- Legacy Infrastructure Support: Extends security updates for EoL-bound FortiGate 110C appliances.
- Regulatory Compliance: Maintains adherence to PCI-DSS 3.2.1 and HIPAA audit requirements.
- Threat Prevention: Integrates updated FortiGuard IPS signatures through Q1 2026.
For technical validation, reference Fortinet Security Advisory FG-IR-23-188 or contact certified service partners.
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: FortiGate firmware version compatibility matrices
: FortiGate-110C hardware specifications
: Enterprise compliance requirements documentation
: Fortinet security vulnerability advisories
