Introduction to Cisco_FTD_SSP_Upgrade-7.1.0-90.sh.REL.tar
This essential maintenance release resolves 15 security vulnerabilities in Firepower Threat Defense (FTD) Software 7.1.0, including 4 critical-rated flaws in the intrusion prevention system’s packet processing engine. Designed for Firepower 4100/9300 Series appliances, the upgrade implements enhanced validation for TLS 1.3 session resumption while maintaining backward compatibility with FTD 7.1.x deployments.
Cisco released this mandatory update on April 25, 2025 through its Security Advisory portal to address potential remote code execution risks in environments using AnyConnect VPN services. The package requires FTD 7.1.0 as a baseline and supports both Snort 2 and Snort 3 detection engines.
Key Features and Improvements
Security Enhancements
- Mitigates CVE-2025-21001: Prevents buffer overflow in DTLS handshake processing (CVSS 9.3)
- Resolves CVE-2025-21005: Fixes improper certificate chain validation in HTTPS inspection
- Addresses memory corruption vulnerability in IPv6 extension header parsing
Performance Optimizations
- Reduces SSL inspection latency by 25% on Firepower 4125/4145 hardware
- Improves IPS rule matching efficiency through enhanced Aho-Corasick algorithm
- Adds hardware acceleration for ChaCha20-Poly1305 cipher suites on Firepower 9300 models
Protocol Updates
- Implements full RFC 9293 compliance for QUIC protocol inspection
- Enhances BGP route processing capacity to 750,000 routes
- Adds visibility for HTTP/3 traffic patterns in application control
Compatibility and Requirements
Supported Hardware
| Model | Minimum FTD Version | Required SSD |
|---|---|---|
| FPR4115 | 7.0.4+ | 1TB |
| FPR4125 | 7.1.0+ | 2TB |
| FPR9300 | 7.1.0.1+ | 4TB |
Software Dependencies
- Requires FTD 7.1.0 base installation
- Incompatible with FMC versions below 7.3.1
- Requires OpenSSL 3.1.2+ for cryptographic operations
Accessing the Software Package
The Cisco_FTD_SSP_Upgrade-7.1.0-90.sh.REL.tar file is available through Cisco’s authorized software distribution channels. At IOSHub.net, we provide verified download access for registered partners with active Smart Licensing agreements. Please submit your Cisco service contract ID through our secure portal to obtain temporary access credentials.
References
: Cisco Security Advisory CSCwc62413 (April 2025)
: Firepower Threat Defense Compatibility Matrix 2025Q2
