Introduction to FGT_VM64_XEN-v7.4.3.F-build2573-FORTINET.out.CitrixXen.zip

This software package provides the FortiGate-VM 64-bit virtual appliance optimized for Citrix XenServer 7.4.3 environments, delivering critical security updates and performance enhancements for virtualized network security deployments. Released on March 15, 2025, it addresses 12 CVEs identified in Q1 2025 while improving integration with XenServer’s hypervisor-level security features.

Designed for enterprises using Citrix XenServer’s virtualization platform, this build (v7.4.3.F-build2573) enhances threat prevention capabilities in Software-Defined Data Center (SDDC) architectures. It supports XenServer 7.2-7.4.3 hosts running on Intel VT-x/AMD-V enabled hardware with Xen Project Hypervisor 4.16+.

Key Features and Improvements

1. ​​Hypervisor-Level Threat Prevention​​

  • Integrates with Xen Security Modules (XSM/FLASK) for hardware-enforced microsegmentation of east-west traffic
  • Patches ​​CVE-2025-33729​​ (vTPM vulnerability in Xen hypervisor) and ​​CVE-2025-31847​​ (VM escape via flawed paravirtual drivers)

2. ​​Performance Optimization​​

  • Achieves ​​25 Gbps SSL inspection throughput​​ through XenServer’s Passthrough PCIe SR-IOV support
  • Reduces vCPU contention latency by 40% via improved NUMA-aware scheduling

3. ​​Enhanced XenMotion Support​​

  • Enables stateful firewall rule migration during live VM transfers between XenServer hosts
  • Maintains IPSec VPN tunnel persistence across XenMotion events

4. ​​Unified Management​​

  • Adds native integration with Citrix Hypervisor Manager for centralized policy deployment
  • Supports Xen Orchestra REST API for automated security group provisioning

Compatibility and Requirements

Supported Virtualization Platforms:

XenServer Version Hypervisor Requirement Minimum Host Resources
7.4.3 (LTSR) Xen 4.16+ 16 vCPUs, 32GB RAM
7.3 CR Xen 4.15 12 vCPUs, 24GB RAM

Hardware Requirements:

  • Intel Xeon Scalable Gen4+ or AMD EPYC 9004 series processors with SR-IOV support
  • NVIDIA BlueField-3 DPUs for hardware-accelerated TLS 1.3 decryption

​​Critical Compatibility Notes​​:

  • Incompatible with XenServer 7.1 or earlier due to XAPI protocol changes
  • Requires XenServer hotfix XS74E003 for stable NIC bonding

Secure Acquisition Process

Licensed FortiGate-VM users with active FortiCare Virtualization Suite subscriptions can obtain ​​FGT_VM64_XEN-v7.4.3.F-build2573-FORTINET.out.CitrixXen.zip​​ through:

  1. Visit ​​https://www.ioshub.net/fortigate-xenserver​​
  2. Submit XenServer host UUID and FortiCare license key
  3. Complete hardware-based attestation via TPM 2.0 module

​​Verification Standards​​:

  • All downloads include FIPS 140-3 validated SHA-512 checksums
  • 72-hour deployment support with XenServer-certified engineers

Why This Update Matters

With 63% of XenServer deployments targeted by hypervisor-level attacks in 2024 (FortiGuard Labs 2025 Virtualization Threat Report), this release provides hardware-rooted trust for virtual network functions while maintaining <5μs latency for financial trading workloads. The package supports zero-downtime updates through XenServer's Rolling Pool Upgrade feature, making it ideal for Tier IV data centers requiring 99.999% availability.

For complete release notes and XenServer integration guidelines, access Fortinet’s technical support portal or contact your Citrix-certified account team.

: Citrix XenServer security best practices documentation
: Fortinet Virtualization Security Reference Architecture

Contact us to Get Download Link Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.