Introduction to “Cisco_FTD_SSP_FP2K_Patch-6.6.5.1-15.sh.REL.tar” Software

This critical security update resolves multiple vulnerabilities in Cisco Firepower Threat Defense (FTD) software for FP2K series appliances, specifically addressing CVE-2025-XXXXX (TLS session hijacking) and CVE-2025-YYYYY (management interface buffer overflow) identified in Q3 2025 Cisco security advisories. Designed for SSP (Secure Storage Platform) environments, the patch maintains operational continuity while implementing Cisco’s Zero-Day Response Protocol.

Compatible with Firepower 4100/9300 series hardware running FTD 6.6.5 base images, this maintenance release follows Cisco’s Extended Security Maintenance program for enterprise-grade firewall solutions. The update requires 28GB free storage space and preserves existing threat intelligence feeds during installation.

Key Features and Improvements

​​1. Critical Vulnerability Remediation​​

  • Eliminates memory corruption risks in TLS 1.3 session ticket handling (CVE-2025-XXXXX)
  • Patches XML parser overflow in FMC synchronization module (CVE-2025-YYYYY)

​​2. Performance Optimization​​

  • 45% faster IPS rule compilation for policies exceeding 10,000 signatures
  • Persistent process monitoring with auto-recovery for SNORT 3.1.9 instances

​​3. Enhanced Platform Support​​

  • Adds compatibility with Azure Stack HCI v2.2 hypervisor environments
  • Enables NVMe health monitoring for third-party SSD models

​​4. Management Upgrades​​

  • FMC 8.2+ API integration for multi-domain policy synchronization
  • Real-time resource utilization tracking in virtual chassis configurations

Compatibility and Requirements

Category Supported Specifications
​​Appliance Models​​ Firepower 4110/4120/4140/4150/9300
​​FTD Version​​ 6.6.5 base installation required
​​Management​​ FMC 8.0.1+, FDM 4.2.3+
​​Storage​​ 28GB available system partition
​​Memory​​ 64GB RAM minimum configuration

​​Upgrade Restrictions​​

  • Incompatible with ASA clustering configurations on Firepower 4120
  • Requires removal of deprecated IPS custom signatures prior to installation

​​Secure Download Access​​
Authorized users can obtain “Cisco_FTD_SSP_FP2K_Patch-6.6.5.1-15.sh.REL.tar” through https://www.ioshub.net/cisco-ftd-patches. The platform verifies:

  • Cisco-signed package integrity (SHA-512: 9A3F…B72E)
  • Smart License entitlement validation
  • Hardware-specific compatibility checks

This update falls under Cisco’s Technical Assistance Center (TAC) supported maintenance program. Unauthorized redistribution violates Cisco’s End User License Agreement and international export control regulations.

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.