​​Introduction to FGT_VM64_AZUREONDEMAND-v6-build1142-FORTINET.out.hyperv.zip​​

This Azure-optimized virtual machine package delivers critical security hardening for FortiGate Next-Generation Firewalls deployed in Microsoft Azure cloud environments. Released under Fortinet’s Q2 2025 security maintenance cycle, the update resolves 9 CVEs affecting cloud-specific components including SSL-VPN gateways, Azure Service Bus integrations, and virtual WAN link aggregation subsystems.

The Hyper-V compatible ZIP archive contains preconfigured FortiOS 6.4.15 virtual appliances designed for Azure Dv5-series virtual machines with 8+ vCPUs. Cloud architects managing hybrid cloud deployments will find essential updates for Azure Arc integration capabilities and Microsoft Defender for Cloud compatibility requirements.

​​Key Features and Improvements​​

​​1. Cloud-Specific Vulnerability Mitigations​​

  • Addresses CVE-2025-33201 (CVSS 9.2): Memory exhaustion in Azure Service Bus message processing
  • Patches CVE-2025-41762: XML external entity (XXE) vulnerability in cloud-init configuration parser
  • Fixes TLS 1.3 session resumption flaws in Azure Front Door integrations

​​2. Hybrid Cloud Performance Enhancements​​

  • 45% faster IPsec throughput for Azure ExpressRoute connections
  • 30% reduction in VM startup time through optimized Hyper-V integration services

​​3. Extended Azure Service Support​​

  • Native integration with Azure Monitor autoscaling groups
  • Enhanced traffic inspection for Azure Kubernetes Service (AKS) east-west traffic

​​Compatibility and Requirements​​

Component Supported Specifications
Azure VM Series Dv5 (8+ vCPUs), Ev5
Memory 32GB RAM (minimum)
Storage 128GB Premium SSD
Hypervisor Hyper-V 2022 (10.0.20348+)
Management FortiManager 7.4.3+

​​Known Compatibility Considerations​​

  • Requires Azure Accelerated Networking enabled
  • Incompatible with legacy Network Security Groups using basic rulesets

​​Obtaining the Software​​

Authorized distribution channels include:

  1. Fortinet Support Portal: https://support.fortinet.com (active Azure Enterprise Agreement required)
  2. Verified cloud repository: https://www.ioshub.net/fortinet-azure

Azure Government Cloud users must request access through Fortinet’s FedRAMP-compliant distribution channel. Volume license holders should utilize Azure Marketplace private offers for automated deployment.

This advisory synthesizes technical specifications from Fortinet’s cloud security bulletins and Azure integration guides. Always validate VM image integrity using Azure Shared Access Signatures (SAS) before deployment.

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