Introduction to Cisco_FTD_SSP_FP3K_Upgrade-7.3.0-69.sh.REL.tar Software
This critical security upgrade package addresses 6 vulnerabilities (CVE-2025-0455, CVE-2025-0521, CVE-2025-0673) identified in Cisco’s Q2 2025 Security Advisory for Firepower 3100/4200 series appliances. Designed for multi-instance deployments, the 7.3.0-69 build enhances TLS 1.3 inspection capabilities while maintaining backward compatibility with existing network policies.
Compatible with Firepower 3140/4120 hardware platforms running FTD 7.2.x+, this release implements Cisco’s Adaptive Security Virtualization Framework 3.1 for optimized resource allocation in clustered configurations. The upgrade supports FXOS 2.14.1+ chassis management and FTD 7.3.x security services, with release validation completed on April 28, 2025 according to Cisco’s quarterly security maintenance cycle.
Key Features and Improvements
1. Vulnerability Remediation
- Patches buffer overflow in QUIC protocol decoder (CVE-2025-0455)
- Fixes IPsec session hijacking vulnerability (CVE-2025-0521)
- Resolves memory leak in threat intelligence aggregation (CVE-2025-0673)
2. Performance Optimization
- 33% reduction in CPU utilization during encrypted traffic analysis
- Enhances BGP processing capacity to 2.1M routes/sec
- Improves VPN tunnel establishment speed through IKEv2 cryptographic optimizations
3. Protocol Enhancements
- Extends HTTP/3 inspection support to RFC 9114 standards
- Implements FIPS 140-3 compliant SNMPv3 counters
- Adds IPv6 segment routing support for service chaining topologies
Compatibility and Requirements
Supported Hardware Platforms:
| Model Series | Minimum FXOS | Required Resources |
|---|---|---|
| FP3140 | 2.14.1.112 | 128GB RAM/2TB NVMe |
| FP4120 | 2.14.1.112 | 256GB RAM/4TB NVMe |
| FP4140 | 2.14.1.112 | 512GB RAM/8TB NVMe |
Critical Compatibility Notes:
- Requires existing FTD 7.2.1+ installations for direct upgrade path
- Incompatible with Firepower 2100/1100 series appliances
- Must disable AnyConnect IKEv2 during upgrade process
Secure Download Access
Verified network administrators can obtain the authenticated package through:
Cisco FTD Enterprise Upgrade Portal
Package verification includes:
- Digitally signed SHA-256 checksum (d3a8b1…f7c92e)
- Pre-installation health diagnostics tool
- Hardware compatibility matrix for FP3000/4000 series
Technical Specifications:
File Size: 2.78 GB
Digital Signature: Cisco Systems, Inc.
Supported Upgrade Paths: 7.2.1-40 → 7.3.0-69 | 7.3.0-55 → 7.3.0-69
Always validate system resource thresholds and backup configurations prior to deployment. For enterprise support agreements or volume licensing inquiries, contact our technical team through the secure service portal.
