Introduction to Cisco_FTD_SSP_FP3K_Upgrade-7.6.0-113.sh.REL.tar
This critical maintenance release for Cisco Firepower 4100 series appliances addresses 14 CVEs while optimizing encrypted traffic inspection performance. Designed for enterprise networks requiring PCI-DSS 4.0 compliance, version 7.6.0.113 introduces hardware-accelerated TLS 1.3 decryption and enhanced cluster stability for high-availability deployments.
As part of Cisco’s Extended Security Maintenance (ESM) program, this Q3 2025 release supports seamless migration from FTD 7.4.x-7.5.x branches while preserving existing VPN configurations and access policies. Third-party testing shows 35% faster policy deployment in multi-context environments compared to previous versions.
Key Features and Improvements
- Vulnerability Mitigations
- Patches directory traversal vulnerability (CVE-2020-3452) in web services interface
- Fixes cluster control plane authentication bypass (CVE-2024-20344)
- Performance Enhancements
- 40Gbps sustained TLS 1.3 inspection on Firepower 4140 hardware
- Adaptive Elephant Flow detection (10-100Gbps dynamic thresholds)
- SSD wear-level monitoring with predictive replacement alerts
- Platform Optimizations
- HA failover time reduced to <8 seconds
- Memory leak fixes in AnyConnect SSL VPN implementations
Compatibility and Requirements
| Supported Hardware | Minimum FXOS Version | Management Center |
|---|---|---|
| Firepower 4115 | 3.14.3 | FMC 7.6.0+ |
| Firepower 4140 | 3.16.0 | FMC 7.8.2+ |
| Firepower 4150 | 3.18.1 | FMC 8.0.1+ |
Critical Notes:
- Requires 256GB SSD for extended threat logging
- Incompatible with VMware ESXi versions <8.0 U2
Cisco_FTD_SSP_Patch-6.6.7.1-42.sh.REL.tar – Firepower 2100/4100 Series FTD v6.6.7.1 Security Hotfix
Introduction to Cisco_FTD_SSP_Patch-6.6.7.1-42.sh.REL.tar
This emergency security patch resolves critical vulnerabilities in Firepower Threat Defense 6.6.x deployments, including a high-severity arbitrary file read flaw (CVE-2020-3452). Specifically engineered for legacy Firepower 2100/4100 series hardware, the hotfix maintains compatibility with NIST SP 800-193 compliance requirements.
Released under Cisco’s accelerated security response protocol, version 6.6.7.1-42 provides backward compatibility with FMC 6.6.x management platforms while introducing performance optimizations for encrypted traffic analysis.
Key Features and Improvements
- Security Fixes
- Eliminates webvpn directory traversal vulnerability
- Patches XSS vulnerabilities in management interface (CVE-2024-20178)
- Platform Stability
- Fixes memory leaks in Snort 2.x detection engine
- Improves HA pair synchronization reliability
- Compliance Updates
- FIPS 140-3 validated cryptographic modules
- Extended support for TLS 1.3 audit logging
Compatibility and Requirements
| Supported Hardware | Minimum FXOS Version | Management Center |
|---|---|---|
| Firepower 2110 | 2.10.1 | FMC 6.6.3+ |
| Firepower 4115 | 3.12.1 | FMC 6.6.5+ |
Critical Notes:
- Requires 64GB RAM minimum
- Not compatible with Firepower 9300 series
Obtaining Software Packages
Both updates are available through:
- Cisco Software Center (Smart Account required)
- Firepower Management Center repositories
- Verified third-party distributors
For immediate access with SHA-512 verification, visit https://www.ioshub.net to download pre-validated packages including:
- Hardware compatibility matrices
- Cluster upgrade playbooks
- Regulatory compliance checklists
Technical Support Options:
Contact specialists via [email protected] for:
- Vulnerability impact assessments
- Bulk license migrations
- Customized deployment templates
These updates demonstrate Cisco’s commitment to enterprise security, with third-party testing showing 99.99% threat detection accuracy in mixed-traffic environments. System administrators should prioritize installation before Q4 2025 to maintain compliance with updated NIST cybersecurity frameworks.
