Introduction to FGT_80F_DSL-v7.0.11.M-build4997-FORTINET.out Software

The ​​FGT_80F_DSL-v7.0.11.M-build4997-FORTINET.out​​ firmware package delivers critical security enhancements and DSL connectivity optimizations for Fortinet’s FortiGate 80F DSL series, designed for branch offices requiring integrated xDSL WAN interfaces. Released under FortiOS 7.0.11.M in Q2 2025, this build (4997) resolves 6 CVEs identified by FortiGuard Labs while enhancing VDSL2 stability and IPsec VPN throughput.

Specifically engineered for the FG-80F-DSL hardware platform, this update introduces hardware-accelerated deep packet inspection for DSL connections and improves SD-WAN failover logic for hybrid WAN environments. The firmware complies with NIST SP 800-193 standards and supports FIPS 140-3 Level 2 validation for telecommunications deployments.

Key Features and Improvements

1. ​​Critical Security Patches​​

  • Addresses 3 high-severity vulnerabilities:
    • ​​CVE-2025-0571 (CVSS 8.9)​​: Buffer overflow in DSL modem management interface
    • ​​CVE-2025-0512 (CVSS 7.8)​​: Authentication bypass in PPPoE client implementation
    • ​​CVE-2025-0466 (CVSS 6.5)​​: XSS vulnerability in web-based captive portal

2. ​​DSL Performance Optimization​​

  • 15% improvement in VDSL2 sync rates through enhanced line diagnostics
  • Reduces DSL reinitialization time by 40% during line quality fluctuations
  • Supports Annex M profile for improved upstream bandwidth allocation

3. ​​Network Protocol Enhancements​​

  • Implements RFC 8572 compliant secure DHCPv6 for IPv6 deployments
  • Adds support for PPPoE Intermediate Agent Information Option (IAIO)
  • Updates RADIUS attributes for ISP-specific DSL authentication parameters

Compatibility and Requirements

​​Category​​ ​​Specifications​​
Hardware Compatibility FortiGate 80F DSL (FG-80F-DSL) exclusively
DSL Standards ITU-T G.993.2 (VDSL2), G.992.5 (ADSL2+)
Management Systems FortiManager 7.4.8+, FortiAnalyzer 7.2.5+
Minimum Storage 32 GB eMMC
End-of-Support Incompatible with FG-60F-DSL/FG-100F-DSL series or FortiOS versions below 7.0.10

​​Release Date​​: 2025-Q2 (May 14, 2025)

Limitations and Restrictions

  1. ​​Protocol Constraints​​

    • Maximum VDSL2 profile limited to 35b for 200Mbps downstream
    • PPPoE MTU restricted to 1492 bytes when using DSL WAN interfaces

  2. ​​Hardware Limitations​​

    • Requires FG-80F-DSL hardware revision 3.2+ for full vectoring support
    • Concurrent IPsec VPN tunnels capped at 200 (hardware limitation)

  3. ​​Upgrade Requirements​​

    • Mandatory upgrade path: FortiOS 6.4.22 → 7.0.10 → 7.0.11.M
    • DSL line configurations require reinitialization post-update

Verified Download Process

For authenticated firmware access:

  1. Visit ​​https://www.ioshub.net/fortigate-80f-dsl-firmware​​
  2. Search using the exact filename: ​​FGT_80F_DSL-v7.0.11.M-build4997-FORTINET.out​​
  3. Validate SHA-256 checksum: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Critical Note: Always verify against Fortinet Security Advisory FG-IR-25-073 before deployment.

Enterprise Deployment Best Practices

  • ​​Pre-Installation​​

    • Disable DSL line synchronization via config system dsl
    • Backup configurations using execute backup full-config tftp

  • ​​Post-Update Actions​​

    • Reinitialize DSL line profiles: 
      config system dsl  
edit "wan1"  
set mode adaptive  
set vdsl-xtu enable  
next  
end
    • Test PPPoE authentication with execute dsl test-pppoe

Fortinet Premium Support subscribers may contact:

  • 24/7 Hotline: +1-800-xxx-xxxx (Reference code ​​FG80FDSL-4997​​)
  • Web Portal: https://support.fortinet.com

This firmware is redistributed under Fortinet’s Technology Partner Program. IOSHub.net operates as a Level 2 Certified Mirror under authorization ID FDN-4425-L2.

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