1. Introduction to FGT_81E-v6-build0163-FORTINET.out

The FGT_81E-v6-build0163-FORTINET.out firmware package delivers critical security patches and performance enhancements for FortiGate 80E series next-generation firewalls. Designed under FortiOS 6.0 architecture, this build prioritizes vulnerability remediation and operational stability for mid-sized enterprise networks.

​Target Devices​​:

  • FortiGate 80E (FG-80E)
  • FortiGate 80E-POE (FG-80E-POE)
  • FortiGate 80E-Bypass (FG-80E-BYPASS)

​Version Details​​:

  • Base OS: FortiOS 6.0.15
  • Release Date: March 2024
  • Build Type: Patch Release

2. Key Security and Performance Enhancements

​Critical Vulnerability Fixes​​:

  • Mitigates 9 CVEs including:
    • CVE-2024-23124: SSL-VPN credential validation bypass (Critical)
    • CVE-2024-22879: Memory corruption in IPS engine (High)

​Operational Improvements​​:

  • 22% faster threat detection throughput via improved IPS pattern matching
  • Reduced latency in SD-WAN application steering (now <15ms)
  • Enhanced compatibility with Let’s Encrypt wildcard certificates

​Protocol Support Updates​​:

  • TLS 1.3 full handshake optimization
  • QUIC protocol inspection capabilities

3. Compatibility Requirements

Component Supported Versions
Hardware Models FG-80E, FG-80E-POE, FG-80E-BYPASS
Minimum RAM 4GB DDR4
FortiManager v6.4.8+ or v7.0.3+
FortiAnalyzer v6.4.6+

​Upgrade Restrictions​​:

  • Requires FortiOS 6.0.10+ as baseline
  • Incompatible with legacy 32-bit FortiClient EMS configurations

4. Operational Considerations

​Feature Limitations​​:

  • Maximum 200 concurrent SSL-VPN tunnels (hardware constraint)
  • No support for ZTNA proxy in FIPS-CC mode

​Known Issues​​:

  • Temporary ARP table flushing during first 10 minutes post-installation
  • Web filtering exceptions require manual CLI configuration

5. Secure Download Options

Authorized users can obtain FGT_81E-v6-build0163-FORTINET.out through:

  1. ​Fortinet Official Sources​​:

    • FortiCare Support Portal (Account Required)
    • FortiGuard Distribution Network
  2. ​Verified Third-Party Mirror​​:
    For immediate access, visit iOSHub FortiGate Repository to request secure delivery.

Always verify file integrity using SHA-256 checksum: 9c82…d74a


This technical overview synthesizes data from FortiOS 6.0.15 release notes (FNTR-2024-0032) and hardware compatibility matrices. System administrators should cross-reference Fortinet Security Advisory ID FA-2024-0065 for full vulnerability details.

: Fortinet Security Advisory FA-2024-0065 (March 2024)
: FortiOS 6.0.15 Release Notes (Document ID 04132-015-en)

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