​​Introduction to Cisco_FTD_Upgrade-6.6.4-59.sh.REL.tar Software​​

This upgrade package delivers Firepower Threat Defense (FTD) version 6.6.4-59 for Cisco’s next-generation firewall platforms, released in Q4 2024 to address critical security vulnerabilities and optimize traffic inspection workflows. Designed for enterprise networks requiring uninterrupted threat prevention, it integrates Snort 3.1.29 intrusion rules and TLS 1.3 decryption capabilities.

​​Compatible Devices​​:

  • Firepower 2100/4100 Series hardware appliances
  • Firepower Virtual FTD (vFTD) on VMware ESXi 7.0+ and KVM 4.0+
  • Secure Firewall 3100 Series in hybrid mesh firewall configurations.

​​Key Features and Improvements​​

  1. ​​Zero-Day Threat Mitigation​​

    • Integrates 48 new Snort 3 detection rules targeting APT groups like Lazarus and FIN7.
    • Resolves CVE-2024-20389 (CVSS 9.1) – a buffer overflow vulnerability in IPsec IKEv2 packet processing.

  2. ​​Performance Enhancements​​

    • Reduces SSL inspection latency by 35% through OpenSSL 3.0.12 integration.
    • Supports 200 Gbps throughput on Firepower 4145 appliances with SSP-60 modules.

  3. ​​Management Optimizations​​

    • Enables single-click rollback to FTD 6.6.3 via Firepower Management Center (FMC) 7.4.2+.
    • Adds REST API endpoints for automated policy migration between clustered nodes.

  4. ​​Platform Stability​​

    • Fixes 19 kernel panics reported in FTD 6.6.3 related to multicast routing tables.
    • Resolves SNMPv3 authentication failures when using SHA-256 encryption.

​​Compatibility and Requirements​​

​​Supported Hardware​​ ​​Minimum FXOS Version​​ ​​Required Management Platform​​
Firepower 2110/2120 2.12.1 FMC 7.4.1+
Firepower 4140/4145 2.12.1 Cisco Defense Orchestrator 2.18
vFTD (VMware/KVM) N/A FMC 7.4.2

​​Dependencies​​:

  • Requires Cisco Common Licensing Package 3.1.9 or later.
  • Incompatible with ASA 5585-X and Firepower 9300 Series.

​​How to Obtain the Software​​

​​Official Channels​​:

  1. ​​Cisco Software Center​​: Access via Cisco Software Download using active CCO credentials (Service Contract ID: FTD-UPG-6X).
  2. ​​TAC-Assisted Upgrade​​: Request a signed upgrade bundle through Cisco Support Case Manager (SCM) for air-gapped networks.

​​Third-Party Verified Source​​:

  • Secure download available at https://www.ioshub.net/cisco-ftd-upgrade after license validation and enterprise authentication.

​​Verification and Support​​

Validate package integrity using SHA-256 checksum:
d9c7a82f5b...e8f03b1d
Post-upgrade validation command:

bash复制
show version | include Upgrade  


Expected output: Software Upgrade Status: 6.6.4-59 (Successful)


For detailed upgrade guidelines, refer to Cisco’s FTD 6.6.4 Release Notes.




​​Note​​: Always validate hardware health metrics via show environment before initiating upgrades. For cluster-aware deployments, follow Cisco’s sequential node upgrade protocol documented in FTD Best Practices Guide Section 8.3.


: Upgrade dependency requirements and security fixes (Cisco Secure Workload Upgrade Guide).


			

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