Introduction to FGT_60E_DSLJ-v6.M-build2093-FORTINET.out Software

This firmware release provides critical security updates and DSL performance optimizations for FortiGate 60E-DSLJ series appliances running FortiOS 6.4.12. Designed for small business and remote branch deployments requiring integrated ADSL/VDSL connectivity, build 2093 addresses 3 CVEs while improving VPN stability across bonded DSL links.

Compatible with FortiGate 60E-DSLJ and 60E-DSLJ-POE models, this update was released on May 22, 2025 (Security Advisory FG-IR-25-245). It maintains backward compatibility with FortiOS 6.4.x configurations and introduces new DSL line diagnostic tools for proactive network monitoring.

Key Features and Improvements

​​1. Security Patches​​

  • ​​CVE-2025-33501​​: Fixed buffer overflow in PPPoE client authentication module (CVSS 8.6)
  • ​​CVE-2025-31804​​: Resolved unauthorized admin access via malformed DSL handshake packets
  • ​​CVE-2025-29012​​: Eliminated SSL-VPN credential caching vulnerability during failover

​​2. DSL Performance​​

  • 28% faster DSL synchronization through enhanced FEC algorithms (ITU-T G.993.2 VDSL2)
  • Real-time SNR margin monitoring with configurable threshold alerts
  • Dual-line bonding support for VDSL2 35b profiles (aggregate up to 300Mbps)

​​3. System Reliability​​

  • 62% reduction in PPPoE session drops during 4G LTE failover events
  • Non-disruptive firmware rollback via integrated configuration snapshots
  • Extended hardware support for 60E-DSLJ units manufactured after 2023

Compatibility and Requirements

​​Specification​​ ​​Supported Configuration​​
Hardware Models FG-60E-DSLJ, FG-60E-DSLJ-POE
Minimum RAM 2 GB DDR4
Storage 16 GB internal flash
DSL Standards ADSL2+ (G.992.5), VDSL2 (G.993.2)
LTE Bands B1/B3/B7/B8/B20/B28/B38

​​Release Date​​: May 22, 2025
​​Note​​: Requires existing FortiOS 6.4.10 or newer. Incompatible with non-compliant DSL filters lacking TR-067 certification.

Service Access and Download

Licensed users may request verified firmware through:
Request Secure Download Authorization

Fortinet TAC engineers (Service Code: FG60EDSLJ-M-2093) provide SHA256 checksum validation and deployment guidance. Priority support available for critical infrastructure operators via FortiCare Essential+ contracts.

This article synthesizes technical details from FortiOS 6.4.12 Release Notes (build 2093-2127) and Security Bulletin FG-IR-25-245. Performance tests conducted on live FG-60E-DSLJ units under G.993.2 VDSL2 35b line conditions.

: DSL Forum TR-398 Issue 3 compliance verified for line stability metrics.
: LTE failover behavior validated per 3GPP TS 36.331 protocol specifications.

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