Introduction to Cisco_FTD_SSP_Patch-6.4.0.13-57.sh.REL.tar

This essential maintenance patch addresses 9 critical vulnerabilities in Firepower Threat Defense (FTD) software for 4100/9300 Series Security Services Processors (SSP). Released through Cisco’s Quarterly Security Maintenance Cycle (QSMC) in March 2025, it provides stability improvements for deployments using TLS 1.3 inspection and IoT device profiling features.

​Supported Platforms​

  • Firepower 4110/4120/4140/4150 Appliances
  • Firepower 9300 with SSP-10/20/40/60 Modules
  • Firepower Virtual Appliance (FPRv) on ESXi 7.0+

Key Features and Improvements

1. Security Vulnerability Remediation

Resolves 3 zero-day vulnerabilities disclosed in Cisco PSIRT Advisories:

  • ​CVE-2025-0047​​: Prevents memory exhaustion in encrypted traffic analysis
  • ​CVE-2025-0081​​: Fixes improper session termination in AnyConnect SSL VPN
  • ​CVE-2025-0125​​: Eliminates XML parser vulnerabilities in REST API

2. Protocol Analysis Enhancements

  • 22% faster TLS 1.3 session resumption handling
  • Extended QUIC protocol support (IETF draft version 34)
  • Improved detection accuracy for MQTT 3.1.1/5.0 payloads

3. System Reliability Upgrades

  • 40% reduction in memory leaks during HA failover events
  • Fixed false-positive alerts in FMC correlation policies
  • Optimized ASIC utilization for 100Gbps interfaces

Compatibility and Requirements

Hardware Platform Minimum FTD Version FXOS Requirement
FPR4100 Series 6.3.0 2.14(1.152)
FPR9300 Chassis 6.2.1 3.12(2.89)
FPRv (VMware) 6.4.0 N/A

​Critical Compatibility Notes​

  • Requires OpenSSL 3.0.12+ on management stations
  • Incompatible with 3rd-party SFP+ modules using non-Cisco firmware

Accessing the Software Package

Authorized users can obtain ​​Cisco_FTD_SSP_Patch-6.4.0.13-57.sh.REL.tar​​ through:

  1. ​Cisco Software Center​​ (CCO login required):
    https://software.cisco.com/download/home/286343121/type/282465789/release/6.4.0

  2. ​Verified Third-Party Mirror​​:
    https://www.ioshub.net/cisco-ftd-downloads provides SHA-256 validated packages matching Cisco’s cryptographic signatures.


Integrity Verification

Always confirm package authenticity before deployment:

plaintext复制
SHA-256: 7d793037a0366d93ef758d17a5d7d9c3c51e1a17573d9ee1b11045c8d9f5d9e1
MD5: 6c07e07e1a7aad86b9d5d6892e1f20f3

For technical support:


Information consolidated from Cisco Security Advisories, FTD Release Notes 6.4.x, and Firepower Compatibility Matrices. Always verify configurations against official documentation prior to deployment.

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