Introduction to Cisco_FTD_SSP_FP1K_Patch-6.5.0.4-57.sh.REL.tar
The Cisco_FTD_SSP_FP1K_Patch-6.5.0.4-57.sh.REL.tar is a critical security maintenance release designed for Firepower Threat Defense (FTD) software running on Firepower 4100 Series appliances. This patch addresses multiple Common Vulnerabilities and Exposures (CVEs) while enhancing platform stability for enterprise firewall deployments.
As part of Cisco’s ongoing security hardening initiatives, this patch targets FTD version 6.5.0.x deployments. It maintains backward compatibility with existing configurations while introducing mandatory security updates required for compliance with modern cybersecurity frameworks like NIST SP 800-53 and ISO 27001 standards.
Compatible Systems:
- Firepower 4125
- Firepower 4140
- Firepower 4150
- Firepower 4115
Key Features and Improvements
1. Security Vulnerability Mitigation
Resolves 12 CVEs rated medium-to-high severity, including:
- Improper session handling in TLS 1.3 implementations
- Memory leak vulnerabilities in VPN IKEv1/IPsec processing
- Cross-site scripting (XSS) risks in Firepower Management Center integration
2. Performance Optimizations
- 27% reduction in packet processing latency for encrypted traffic flows
- Enhanced TCP state table management supporting 3.8 million concurrent connections
- Improved HA failover times (reduced from 8.2s to 5.1s in lab tests)
3. Platform Stability Enhancements
- Prevents watchdog crashes during SSL decryption operations
- Fixes resource contention issues in multi-tenant deployments
- Addresses false-positive malware detection in PDF/XLSX files
Compatibility and Requirements
| Supported Hardware | Minimum FTD Version | Disk Space Requirement | RAM Allocation |
|---|---|---|---|
| FPR4115 | 6.5.0.1 | 15GB | 32GB |
| FPR4125 | 6.5.0.3 | 18GB | 64GB |
| FPR4140 | 6.5.0 Base Image | 22GB | 128GB |
Critical Compatibility Notes:
- Requires FXOS 2.10.1.150 or later on chassis controllers
- Incompatible with third-party SSL inspection certificates using SHA-1 hashing
- Must remove deprecated Snort 2.x rulesets before installation
Obtaining the Software Package
This security patch is available through Cisco’s authorized software distribution channels. While Cisco requires valid service contracts for direct downloads, our platform at https://www.ioshub.net maintains an updated repository of verified Cisco security patches with SHA-256 checksum validation.
For enterprise users requiring bulk licensing or government procurement options, Cisco’s Technical Assistance Center (TAC) provides 24/7 patch deployment consultation through service request SR-824-667155. Emergency access alternatives are available for organizations impacted by active CVE exploits.
