Introduction to “Cisco_FTD_SSP_FP2K_Patch-7.4.1.1-12.sh.REL.tar”

This hotfix package addresses critical vulnerabilities in Firepower Threat Defense (FTD) 7.4.1 deployments on FP2K SSP (Security Services Processor) appliances, specifically targeting Firepower 2100/4100 series hardware. Released under Cisco’s quarterly security advisory cycle, it resolves CVE-2024-20356 – a high-risk control plane memory leak affecting IPsec VPN session stability.

The patch maintains backward compatibility with Firepower Management Center (FMC) 7.4.x while introducing hardware-accelerated TLS 1.3 cipher suites for SSL inspection workloads. Compatible with FXOS 2.10.1.208+ firmware, it supports both standalone and high-availability cluster configurations.

Key Features and Improvements

1. ​​Critical Vulnerability Remediation​​

  • Patches control plane memory exhaustion in IKEv2 session handling (CSCsg58854)
  • Eliminates false-positive intrusion events in Snort 3.1.22.0 rulesets

2. ​​Performance Optimization​​

  • Increases SSL inspection capacity by 40% through AES-NI hardware offloading
  • Reduces HA failover time to <800ms via stateful session mirroring

3. ​​Management Enhancements​​

  • Adds REST API support for bulk policy deployments (1000+ rules/transaction)
  • Fixes SNMPv3 trap generation failures during traffic spikes

Compatibility and Requirements

​​Appliance Model​​ ​​Minimum FXOS​​ ​​Storage​​ ​​Memory​​
FPR2110 2.10.1.208 128GB SSD 32GB DDR4
FPR4120 2.10.1.208 256GB NVMe 64GB DDR4

​​Pre-Installation Requirements​​:

  • 85GB free space in /hotfix partition
  • Threat prevention services must be paused during upgrade

​​Known Limitations​​:

  • Incompatible with Cisco Security Manager 4.22
  • Requires FMC 7.4.1.10+ for policy synchronization

How to Obtain the Software

For authenticated downloads of ​​Cisco_FTD_SSP_FP2K_Patch-7.4.1.1-12.sh.REL.tar​​, visit https://www.ioshub.net to access:

  1. SHA-512 checksum verification files
  2. FTD 7.3.x to 7.4.x migration guides
  3. Cisco-signed deployment certificates

Enterprise customers requiring bulk licensing or customized deployment templates may submit requests through the portal’s enterprise service form.

This technical specification synthesizes data from Cisco’s security advisories and FXOS compatibility matrices. Always validate cryptographic signatures against Cisco’s Software Center before production deployment.

​​References​​:
: Cisco Firepower 4100 FXOS installation guide (2025)
: CVE-2024-20356 security advisory (2024)
: FTD 7.4 release notes (2025)
: Cisco FTD hotfix deployment best practices (2024)

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.