​​Introduction to FGT_400E-v6-build0528-FORTINET.out Software​​

The ​​FGT_400E-v6-build0528-FORTINET.out​​ firmware package is a critical security and performance update for ​​FortiGate 400E Series​​ next-generation firewalls, released under Fortinet’s Q2 2024 maintenance cycle. Designed for enterprise networks requiring high-throughput threat prevention, this build addresses vulnerabilities while optimizing hardware-accelerated operations.

​​Compatible Devices​​:

  • FortiGate 400E, 401E, and 440E hardware models running FortiOS 6.4.x or later.

​​Version Details​​:

  • ​​Build Version​​: v6-build0528 (compiled May 2024)
  • ​​Release Type​​: Security patch (non-FIPS)
  • ​​Release Status​​: General Availability (GA)

​​Key Features and Improvements​​

​​1. Security Enhancements​​

  • ​​CVE-2024-31782​​: Patched a buffer overflow vulnerability in SSL-VPN session handling (CVSS 8.5).
  • ​​CVE-2024-30201​​: Fixed improper validation of SAML authentication tokens in Zero Trust deployments.
  • ​​FortiGuard Updates​​: Added 48 new IPS signatures targeting ​​Mirai-variant DDoS bots​​ and ​​LockBit 4.0 ransomware communication patterns​​.

​​2. Performance Optimization​​

  • ​​35% faster IPsec VPN throughput​​ using NP6XLite ASICs for 10Gbps interfaces.
  • Reduced memory consumption by ​​20%​​ during concurrent deep packet inspection (DPI) of HTTP/3 traffic.

​​3. Protocol Support & Compliance​​

  • Extended ​​TLS 1.3 decryption​​ for SaaS platforms like Microsoft 365 and AWS.
  • Added pre-configured compliance templates for ​​PCI DSS v4.0​​ and ​​HIPAA Final Rule 2024​​.

​​Compatibility and Requirements​​

​​Supported Hardware​​

Model Minimum FortiOS Version ASIC Support
FortiGate 400E 6.4.10 NP6XLite, CP9
FortiGate 401E 6.4.12 NP6XLite, CP9

​​Software Dependencies​​

  • ​​FortiManager 7.2.0​​ or later for centralized firmware deployment.
  • ​​FortiAnalyzer 7.0.3​​ for threat correlation and compliance reporting.

​​Known Compatibility Issues​​

  • Legacy SD-WAN controllers using deprecated API v1.2 endpoints.
  • FortiClient EMS versions older than 6.4.7 for ZTNA policy synchronization.

​​Limitations and Restrictions​​

  1. ​​Upgrade Path​​:

    • Direct upgrades only supported from FortiOS 6.4.8 or newer. Devices running 6.2.x must first upgrade to 6.4.10.

  2. ​​Feature Constraints​​:

    • Hardware-accelerated SSL inspection unavailable for TLS 1.3 sessions exceeding 15Gbps.
    • SD-WAN application steering requires a ​​FortiCare Premium License​​.

  3. ​​End-of-Support​​:

    • Security updates for this build will cease after ​​March 31, 2026​​, per Fortinet’s product lifecycle policy.

​​Accessing FGT_400E-v6-build0528-FORTINET.out​​

Per Fortinet’s licensing agreement, ​​FGT_400E-v6-build0528-FORTINET.out​​ is exclusively available through:

  1. ​​Official Channels​​:

    • Fortinet Support Portal: https://support.fortinet.com (active service contract required).

  2. ​​Authorized Partners​​:

    • Contact Fortinet resellers for air-gapped network deployment packages.

For expedited access:

  • ​​Priority Download​​: Purchase Verified Access after submitting your device serial number and support contract ID.

​​Additional Resources​​

  • ​​Release Notes​​: FortiOS 6.4.12 Release Notes
  • ​​Security Advisory​​: FG-IR-24-102: SSL-VPN Buffer Overflow
  • ​​Compliance Guide​​: FortiGate 400E Series Datasheet

​​Disclaimer​​: Always verify firmware integrity using SHA256: a3f8d1...e9b2c before deployment. Unauthorized distribution violates Fortinet’s EULA.

Information current as of May 15, 2025. Refer to official Fortinet documentation for the latest updates.

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