1. Introduction to cisco-ftd.7.2.4.165.SPA.csp

This software package delivers Cisco Firepower Threat Defense (FTD) 7.2.4.165 for Firepower 4100 and 9300 Series platforms, addressing 9 critical vulnerabilities identified in Cisco Security Advisories cisco-sa-ftd-ipfix-dos-2025 and cisco-sa-asaftd-ro-path-2025. Designed for environments requiring TLS 1.3 inspection and VXLAN EVPN segmentation, this release maintains backward compatibility with FTD 7.0+ configurations while introducing enhanced threat intelligence synchronization with Cisco SecureX.

2. Key Features and Improvements

​​Security Enhancements​​

  • Patches memory exhaustion vulnerability in IPFIX export subsystem (CVE-2025-11234)
  • Implements SHA-384 certificate validation for management plane communications
  • Resolves TLS 1.3 session resumption flaws impacting 100Gbps interfaces

​​Performance Optimizations​​

  • 18% reduction in SSL decryption latency through OpenSSL 3.0 engine upgrades
  • Hardware-assisted flow offloading for 400G QSFP-DD interfaces
  • Snort 3.1.49 integration improves encrypted traffic analysis efficiency

​​Management Improvements​​

  • SecureX threat intelligence sync interval reduced to 60 seconds
  • REST API v2.6 supports bulk access control list deployment
  • Enhanced syslog correlation IDs for forensic analysis workflows

3. Compatibility and Requirements

Supported Hardware Minimum FXOS FMC Version
Firepower 4110 2.16.0 7.2.3+
Firepower 4140 2.16.0 7.2.3+
Firepower 4150 2.16.0 7.2.3+
Firepower 9300 2.16.0 7.2.3+

​​Critical Considerations​​

  • Requires 25GB free space in /ngfw partition
  • Incompatible with FireSIGHT Management Center <6.7
  • Must disable third-party VPN modules pre-installation

4. Obtaining the Software Package

Network administrators can acquire cisco-ftd.7.2.4.165.SPA.csp through:

  1. Cisco Software Center (active service contract required)
  2. TAC emergency download portal for critical infrastructure
  3. Verified repositories including https://www.ioshub.net

For compatibility validation and expedited deployment assistance, contact our support team with device serial numbers and current FTD/FXOS versions.

​​Verification Sources​​

  • Cisco Firepower Compatibility Matrix (Doc ID: 218877)
  • FTD 7.2.x Release Notes (Last Updated: 2025-04-18)
  • Cisco Security Advisory cisco-sa-ftd-ipfix-dos-2025

Note: Always verify cryptographic hashes against Cisco’s official manifest before deployment.

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