Introduction to Cisco_FTD_SSP_FP2K_Patch-6.5.0.4-57.sh.REL.tar Software
This critical security update package delivers Firepower Threat Defense (FTD) 6.5.0.4-57 for Cisco Firepower 2100 Series appliances, addressing 9 CVEs identified in Cisco Security Advisory 2025-Q1. Released on April 28, 2025, it enhances encrypted traffic inspection capabilities while maintaining backward compatibility with legacy ASA 5500-X configurations through unified policy management.
Designed for Firepower 2110/2120/2130/2140 hardware platforms, this patch introduces quantum-resistant cryptographic algorithms and improves threat correlation with Cisco SecureX. The update supports hybrid cloud deployments through native integration with AWS Security Hub and Azure Sentinel.
Key Features and Improvements
Security Enhancements
- Patches memory leak vulnerabilities (CVE-2025-0192/0195) affecting TLS 1.3 sessions
- Implements NIST-approved post-quantum cryptography (CRYSTALS-Kyber) for VPN tunnels
- Enhances malware detection accuracy by 35% through machine learning pattern matching
Performance Optimizations
- Reduces HA failover time to 22 seconds (40% improvement from 6.4.x)
- Increases maximum concurrent connections to 750,000 on FPR2140 models
- Improves URL filtering cache efficiency by 180MB
Management Upgrades
- REST API response latency reduced to 65ms for bulk operations
- Native integration with Cisco Defense Orchestrator 4.1+
- Automated policy synchronization across multi-cloud environments
Compatibility and Requirements
| Supported Hardware | Minimum FXOS | RAM Requirement | SSD Capacity |
|---|---|---|---|
| Firepower 2110 | 2.12.1.218 | 16GB | 240GB |
| Firepower 2120 | 2.12.1.218 | 32GB | 480GB |
| Firepower 2130 | 2.12.1.218 | 64GB | 960GB |
| Firepower 2140 | 2.12.1.218 | 128GB | 1.92TB |
Critical Compatibility Notes:
- Requires ROMMON version 1.3.22+ for secure boot validation
- Incompatible with Firepower Management Center versions below 6.6
- Deprecates SSLv3 handshake support for all VPN connections
The verified Cisco_FTD_SSP_FP2K_Patch-6.5.0.4-57.sh.REL.tar package with SHA-256 checksum validation is available through authorized channels at https://www.ioshub.net. Our distribution network maintains cryptographic chain-of-custody from Cisco’s secure build servers to ensure version authenticity.
