Introduction to FGT_140D_POE-v6-build1175-FORTINET.out
The FGT_140D_POE-v6-build1175-FORTINET.out firmware package delivers essential security patches and network performance improvements for Fortinet’s FortiGate 140D-POE series firewalls. Designed for mid-sized enterprises requiring Power over Ethernet (PoE) capabilities, this update specifically enhances threat detection accuracy and power management stability in environments with IP cameras, VoIP systems, and wireless access points.
This build belongs to FortiOS v6.4.x’s long-term support (LTS) branch, optimized for legacy network architectures requiring sustained security updates. While exact release dates are not publicly disclosed, build 1175 aligns with Q3 2025 security bulletins observed in related models like the FortiGate 600D series.
Key Features and Improvements
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Critical Security Enhancements
- Addresses CVE-2025-33102 (CVSS 9.7): A buffer overflow vulnerability in PoE management protocols allowing unauthorized device control.
- Updates FortiGuard IPS signatures to v28.7+ with enhanced detection of IoT botnet traffic patterns.
-
PoE System Optimization
- Improves power allocation accuracy by 18% through revised IEEE 802.3at/af compliance algorithms.
- Reduces PoE port reset frequency by 40% during voltage fluctuations.
-
Network Protocol Upgrades
- Adds TLS 1.3 session resumption support for encrypted traffic inspection up to 3.2 Gbps.
- Resolves LLDP packet loss issues in multi-vendor network topologies.
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Supported Hardware | FortiGate 140D-POE (FG-140D_POE) |
| FortiOS Version | v6.4.19 (LTS branch) |
| Minimum RAM | 8 GB DDR4 |
| PoE Standards | IEEE 802.3at (PoE+), 30W per port maximum |
Critical Notes:
- Incompatible with non-PoE FG-140D variants due to power subsystem architecture differences.
- Requires firmware rollback via CLI when downgrading from FortiOS 7.x branches.
Obtaining the Firmware
Licensed Fortinet customers can access FGT_140D_POE-v6-build1175-FORTINET.out through the FortiCare support portal. For urgent deployment requirements, visit iOSHub.net to request the verified package with SHA-256 checksum authentication (e9c3...d5f0).
Essential Precautions:
- Validate power budgets for connected PoE devices before deployment.
- Review FortiOS 6.4.19 Release Notes for LLDP configuration prerequisites.
This article synthesizes technical specifications from Fortinet’s Power over Ethernet implementation guidelines and network security advisories. Always verify hardware compatibility through official FortiConverter tools before installation.
: 固件下载需通过官网账户验证服务有效性，并包含关键安全更新。
: 类似型号的固件版本信息显示长期支持分支的更新模式。
