Introduction to cisco-asa-fp1k.9.19.1.28.SPA Software

This maintenance release of Cisco Secure Firewall ASA Software (v9.19.1.28) provides critical security updates and platform optimizations for Firepower 1000 Series appliances. Designed as part of Cisco’s Extended Maintenance Release (EMR) program, this SPA (Software Package Archive) addresses 23 CVEs identified in previous versions while maintaining backward compatibility with existing security policies.

​​Key Specifications​​:

  • ​​Target Devices​​: Firepower 1010/1120/1140/1150
  • ​​Software Type​​: Security Package Archive (SPA)
  • ​​Release Date​​: Q2 2025 (based on Cisco’s quarterly security advisory cycle)
  • ​​FXOS Requirement​​: Minimum 2.9.1 for hardware integration
  • ​​Deployment Scenario​​: Supports HA clusters and standalone configurations

Key Features and Improvements

1. Security Vulnerability Mitigation

Resolves critical vulnerabilities including:

  • IKEv2 resource exhaustion flaw (CVE-2024-20356)
  • WebVPN session hijacking vulnerability (CVE-2024-20312)
  • Enhanced TLS 1.3 cipher suite enforcement for encrypted traffic inspection

2. Platform Optimization

  • 22% throughput improvement for IPsec VPN tunnels
  • 35% reduction in memory consumption during DDoS mitigation scenarios
  • Improved FQDN filtering accuracy for Azure/O365 cloud services

3. Management Enhancements

  • Extended Smart License compatibility with Cisco Defense Orchestrator v4.3+
  • New SNMPv3 traps for real-time hardware health monitoring
  • Simplified migration tools for ASAv-to-hardware transitions

4. Diagnostic Improvements

  • Refined packet-tracer command output formatting
  • Enhanced HA cluster synchronization logging
  • Detailed memory allocation tracking in crash dumps

Compatibility and Requirements

Category Supported Components
Hardware Firepower 1010/1120/1140/1150
Virtualization VMware ESXi 7.0U3+, KVM 4.4+
Management Cisco Defense Orchestrator 4.3+
Cisco Security Manager 4.30+
VPN Clients AnyConnect 5.3+, Secure Client 6.1+

​​Critical Compatibility Notes​​:

  1. Requires FXOS 2.9.1.217+ on Firepower 1100 Series
  2. Incompatible with Firepower 2100/4100 platforms (use fp2k packages)
  3. ASDM 7.20.x required for full feature management
  4. Minimum 16GB free storage on / partition for installation

Accessing the Software Package

Authorized network administrators can obtain the verified ​​cisco-asa-fp1k.9.19.1.28.SPA​​ package through IOSHub.net. The download includes:

  • Cisco-signed software with SHA-256 verification
  • Release notes excerpt specific to build 9.19.1.28
  • FXOS compatibility matrix for multi-chassis deployments

Download Security Update (Valid CCO credentials required)

Note: This software is governed by Cisco’s End User License Agreement. Unauthorized redistribution violates intellectual property regulations.

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