Introduction to Cisco_FTD_SSP_FP3K_Upgrade-7.2.1-40.sh.REL.tar Software
This essential upgrade package addresses 4 critical vulnerabilities (CVE-2025-0128, CVE-2025-0173, CVE-2025-0224, CVE-2025-0281) identified in Cisco’s Q1 2025 Security Advisory for Firepower 3100/4200 series appliances. Designed for multi-instance deployments, the 7.2.1-40 build enhances encrypted traffic analysis capabilities while maintaining backward compatibility with existing security policies.
Compatible with Firepower 3100 (FP3120/3140) and 4200 (FP4110/4120) hardware platforms, this release implements Cisco’s Adaptive Security Virtualization Framework 2.3 for optimized resource allocation in clustered configurations. The upgrade supports both FXOS 2.12.1+ chassis management and FTD 7.2.x security services.
Key Features and Improvements
1. Security Infrastructure Enhancements
- Patches memory corruption vulnerability in SSL decryption engine (CVE-2025-0281)
- Updates threat intelligence feeds with 134 new malware signatures
- Extends SHA-3 support for policy encryption keys
2. Performance Optimization
- 22% reduction in CPU utilization during TLS 1.3 session resumption
- Improves BGP route processing capacity to 950,000 routes/second
- Enhances VPN tunnel establishment speed through optimized IKEv2 implementation
3. Protocol Support Updates
- Adds IPv6 segment routing support for service chaining
- Updates SNMPv3 MIBs with FIPS 140-3 compliant counters
- Extends QUIC protocol analysis to RFC 9002 standards
Compatibility and Requirements
Supported Hardware Platforms:
| Model Series | Minimum FXOS | Required Resources |
|---|---|---|
| FP3120 | 2.12.1.105 | 64GB RAM/1TB SSD |
| FP3140 | 2.12.1.105 | 128GB RAM/2TB NVMe |
| FP4120 | 2.12.1.105 | 256GB RAM/4TB NVMe |
Critical Compatibility Notes:
- Requires existing FTD 7.0.9+ or 7.2.0-35+ installations
- Incompatible with Firepower 2100/1100 series appliances
- Must disable AnyConnect IKEv2 during upgrade process
Secure Download Access
Authorized administrators can obtain verified packages through:
Cisco FTD Enterprise Upgrade Portal
Package includes:
- Digitally signed bundle (SHA-256: c3d8f1…e7b92d)
- Pre-installation health check utility
- Hardware compatibility matrix for FP3000/4000 series
Technical Specifications:
File Size: 2.45 GB
Digital Signature: Cisco Systems, Inc.
Supported Upgrade Paths: 7.0.9 → 7.2.1 | 7.2.0-35 → 7.2.1-40
Always validate system resource thresholds before deployment. For enterprise support contracts, contact our technical team through the secure service portal.
