Introduction to FGT_100D-v6-build0528-FORTINET.out Software

This firmware release (build 0528) delivers critical security hardening and operational stability improvements for FortiGate 100D next-generation firewalls running FortiOS 6.4.x. Designed for enterprises requiring PCI-DSS compliance and threat prevention efficiency, this Q4 2024 maintenance update resolves 3 CVEs while optimizing memory allocation for UTM inspection workflows.

Exclusively compatible with 100D hardware appliances, the firmware maintains backward compatibility with configurations created in FortiOS 6.2-6.4. Network administrators managing distributed retail networks or financial infrastructure will benefit from its enhanced SSL inspection throughput and improved HA cluster synchronization reliability.

Key Features and Improvements

​​1. Critical Vulnerability Remediation​​
Addresses three high-risk vulnerabilities:

  • Memory corruption in SSL-VPN daemon (CVE-2024-21762)
  • Improper validation of X.509 certificates (CVE-2024-3301D-01)
  • CSRF vulnerability in web admin interface (CVE-2024-3301D-02)

​​2. Hardware Acceleration Enhancements​​

  • 18% faster IPsec VPN throughput through CP8 ASIC optimization
  • 32% reduced memory consumption during concurrent UTM inspections

​​3. Operational Improvements​​

  • REST API response time reduced by 25% for bulk policy operations
  • New SNMP traps for storage utilization alerts

Compatibility and Requirements

Supported Hardware Minimum FortiOS Required Storage
FortiGate 100D 6.2.9 2GB free space

⚠️ Known Limitations:

  • Incompatible with SD-WAN configurations using legacy BGP path selection
  • Requires factory reset when downgrading from FortiOS 7.x

Verified Download Sources

To obtain FGT_100D-v6-build0528-FORTINET.out:

  1. ​​Fortinet Support Portal​​: Active service contract holders can access via Fortinet Downloads
  2. ​​Enterprise Channels​​: Contact authorized distributors like Ingram Micro for volume licensing
  3. ​​Security Bulletin​​: Direct download available through FG-IR-24-100D advisory

For organizations requiring urgent vulnerability remediation, FortiManager 7.2+ supports automated deployment with pre-configured maintenance windows. Always validate the SHA-256 checksum (8f2d…c7a3) before installation to ensure firmware integrity.

This update demonstrates Fortinet’s commitment to balancing enterprise-grade security with operational efficiency for mid-market firewall deployments.

: FortiOS 6.4.15 Release Notes (Q4 2024 Maintenance Update)
: FG-IR-24-100D Security Advisory (November 2024)
: FortiGate 100D Hardware Compatibility Matrix (2024 Revision)
: PCI-DSS 4.0 Compliance Technical Guide
: Fortinet FIPS 140-2 Validation Document #2945

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