Introduction to cisco-asa-fp1k.9.16.4.67.SPA
This security software package (cisco-asa-fp1k.9.16.4.67.SPA) delivers critical maintenance updates for Cisco Firepower 1000 Series appliances running Adaptive Security Appliance (ASA) software. Designed as an interim release under Cisco’s Extended Maintenance program, it addresses 14 documented vulnerabilities while maintaining backward compatibility with legacy threat defense configurations.
The version identifier “9.16.4.67” confirms this build as a cumulative update for the 9.16(4) code train, specifically optimized for Firepower 1100/1150 hardware platforms. The “.SPA” extension indicates a signed production image validated for enterprise deployments requiring FIPS 140-2 Level 1 compliance.
Key Features and Improvements
1. Security Vulnerability Mitigation
- Resolves CVE-2025-3291 (CVSS 8.1) – TCP state table exhaustion vulnerability
- Patches CVE-2025-3315 (CVSS 7.5) – REST API authentication bypass flaw
- Implements TLS 1.3 cipher suite prioritization for management plane
2. Platform Performance Enhancements
- Reduces firewall policy lookup latency by 22% through optimized ACL processing
- Increases maximum VPN tunnel capacity to 15,000 sessions on Firepower 1150
- Improves FXOS 2.10 interoperability with UCS C-Series servers
3. Management Protocol Updates
- Extends SNMPv3 support for 12 new MIB objects related to threat metrics
- Adds REST API endpoints for batch certificate management operations
- Enhances ASDM telemetry reporting with real-time NPU utilization metrics
Compatibility and Requirements
| Supported Hardware | Minimum FXOS Version | Required ASDM Version |
|---|---|---|
| Firepower 1110 | 2.10.1.217 | 7.18(1) |
| Firepower 1120 | 2.10.1.217 | 7.18(1) |
| Firepower 1150 | 2.12(1.102) | 7.18(1) |
Critical Compatibility Notes:
- Incompatible with Firepower 2100/9300 chassis
- Requires 16GB free space on internal SSD
- Mandatory firmware downgrade protection enabled
Verified Download Access
Authorized administrators can obtain this software through:
1. Enterprise validation at Cisco Firepower Software Repository
2. Emergency TAC-assisted recovery channels
Prior to deployment, validate the cryptographic signature using Cisco’s official PGP key:
Key ID: 9A30DE919DF0B52DB3A0D02BF4DBE7260281C6C7
Technical Support Options
For organizations requiring guaranteed service levels:
- Priority Download Access: $5 processing fee enables immediate ISO retrieval
- Certified Installation Support: Schedule engineer-assisted deployment via IOShub Professional Services
This build has completed Cisco’s Security Vulnerability Verification (SVV) process, achieving 99.97% stability in multi-vendor test environments. System administrators should review the complete Firepower 1000 Series Compatibility Matrix before initiating upgrades.
