Cisco ASA 5500-X Series Firewalls
| Product Type | Firewalls |
|---|---|
| Status | Available |
| Series Release Date | 03-MAY-2005 |
| Diagram | Visio Stencil (7 MB .zip file) |
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This product is supported by Cisco, but is no longer sold.
Supported Models: - Cisco ASA 5525-X Adaptive Security Appliance - Cisco ASA 5545-X Adaptive Security Appliance - Cisco ASA 5555-X Adaptive Security Appliance |
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Recent Security Notices
- 26-Sep-2025
- 25-Sep-2025
- 25-Sep-2025
- 09-Sep-2025
- 03-Sep-2025
Document Categories
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Data Sheets and Product Information
- Cisco ASA Botnet Traffic Filter (PDF - 696 KB)
At-a-Glance
- Cisco ASA 5500 Series Adaptive Security Appliances Data Sheet
- Cisco ASA 5500 and ASA 5500-X Series Next Generation Firewalls for the Internet Edge Data Sheet
- Cisco ASA 5505 Adaptive Security Appliance for Small Office or Branch Locations Data Sheet
- Cisco ASA 5500 Series Advanced Inspection and Prevention Security Services Module and Card
- Cisco ASA 5500 Series Unified Communications Deployments
- Cisco ASA 5500 Series Content Security and Control Security Services Module
Data Sheets
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English
- End-of-Sale and End-of-Life Announcement for the Cisco ASA5508 and ASA5516 Series Security Appliance 1 YR Subscriptions
- End-of-Sale and End-of-Life Announcement for the Cisco ASA5525, ASA5545 & ASA5555 Series 3 YR Subscriptions
- End-of-Sale and End-of-Life Announcement for the Cisco ASA5512 & ASA5515 - 1Yr Subscriptions
- End-of-Sale and End-of-Life Announcement for the Cisco Context Directory Agent (CDA)
- End-of-Sale and End-of-Life Announcement for the Cisco ASA CX Context-Aware Security and Cisco Prime Security Manager
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5512-X and ASA 5515-X
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5585-X Adaptive Security Appliance
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5505 Adaptive Security Appliance
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 1000V
- EOL/EOS for the Cisco ASA 5580 Adaptive Security Appliance
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5550 Adaptive Security Appliances
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5520 Adaptive Security Appliance
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5510 Adaptive Security Appliance
- End-of-Sale and End-of-Life Announcement for the Cisco ASA 5540 Adaptive Security Appliances
End-of-Life and End-of-Sale Notices
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Security Notices
- Cisco’s Next Generation Firewall Product Line Software Release and Sustaining Bulletin
- End-of-Sale and End-of-Life Announcement for the Cisco Context Directory Agent (CDA)
Bulletins
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Applicable to Multiple Models
- Field Notice: FN - 72550 - ASA and Firepower Software: Secure Firewall Appliance Might Traceback And Reload In A High Availability Configuration - Software Upgrade Recommended
- Field Notice: FN - 72439 - ASA and FTD Software: Network Address Translation Might Become Disabled - Software Upgrade Recommended
- Field Notice: FN - 72103 - ASA, FXOS and Firepower Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, And Other Functionality - Software Upgrade Recommended
- Field Notice: FN - 72212 - ASA 5500-X - Sustained Burst Of Connection Requests Might Cause Overallocation Of DMA Memory - Workaround Provided
- Field Notice: FN - 70050 - ASA5500-X with FirePOWER Services - FirePOWER Software v5.4.0.9 Can Cause Accelerated Wear of Solid-State Drives - Software Upgrade Recommended
- Field Notice: FN - 64291 - ASA and FTD Software - Security Appliance Might Fail To Pass Traffic After 213 Days Of Uptime - Reboot Required - Software Upgrade Recommended
- Field Notice: FN - 70467 - ASA Software - AnyConnect Connections Might Fail With TCP Connection Limit Exceeded Error - Software Upgrade Recommended
- Field Notice: FN - 63705 - ASA 5500-X Appliances - Default IPS Software Might Not Be Installed - Software Upgrade Recommended
- Field Notice: FN - 63521 - ASA5500-X Appliance - Units shipped without default configuration - Configuration Change Recommended
- Field Notice: FN - 70319 - ASA and FXOS Software - Change in Root Certificate Might Affect Smart Licensing and Smart Call Home Functionality - Software Upgrade Recommended
- Field Notice: FN - 70081 - ASA Software - ASA 5500-X Security Appliance Might Reboot When It Authenticates the AnyConnect Client - Software Upgrade Recommended
- Field Notice: FN - 64315 - ASA Software - Stale VPN Context Entries Cause ASA to Stop Traffic Encryption - Software Upgrade Recommended
- Field Notice: FN - 64227 - ASA Software - Some Commands Might Fail on ASA 5500-X Security Appliances - Software Upgrade Recommended
- Field Notice: FN - 64294 - ISA3000 Software Security Appliance Might Fail To Pass Traffic After 213 Days Of Uptime - Software Upgrade Recommended
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Cisco ASA 5540 Adaptive Security Appliance
- Field Notice: FN70549 - ASA5506, ASA5508, and ASA5516 Security Appliances - Some RMA Replacements Might Fail Due to a Rework Process Issue - Replace on Failure
- Field Notice: FN64228 - ASA 5506, ASA 5506H, ASA 5508, and ASA 5516 Might Fail After 18 Months or Longer Due to Clock Signal Component Failure - Replace on Failure
- Field Notice: FN74153 - ASA Software: Secure Firewall Appliance Lina Process Might Traceback And Reload - Software Upgrade Recommended
Field Notices
- Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software VPN Web Server Unauthorized Access Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software VPN Web Server Remote Code Execution Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance Software, Secure Firewall Threat Defense Software, IOS Software, IOS XE Software, and IOS XR Software Web Services Remote Code Execution Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 2100 Series IPv6 over IPsec Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series TLS 1.3 Cipher Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SSL/TLS Certificate Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Rules Bypass Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Web Services Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Server Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerabilities
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software DHCP Denial of Service Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Authenticated Command Injection Vulnerabilities
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access VPN Web Server Denial of Service Vulnerability
- Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerabilities
Security Advisories, Responses and Notices
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Release and Compatibility
- Cisco Secure Firewall Threat Defense Compatibility Guide
- Cisco Secure Firewall ASA Compatibility
- Cisco Secure Firewall Migration Tool Compatibility Guide
- Supported VPN Platforms, Cisco Secure Firewall ASA Series
- Cisco Firepower Classic Device Compatibility Guide
Compatibility Information
- Cisco Secure Firewall Device Manager New Features by Release
- Cisco Secure Firewall Management Center New Features by Release
- Cisco Secure Firewall Threat Defense/Firepower Hotfix Release Notes
- Release Notes for the Cisco ASA Device Package Software, Version 1.3(11) for ACI
- Release Notes for the Cisco ASA Device Package Software, Version 1.3(10) for ACI
- Release Notes for the Cisco ASA Device Package Software, Version 1.2(12) for ACI
- Release Notes for the Cisco ASA Device Package Software, Version 1.2(11) for ACI
- Release Notes for the Cisco ASA Device Package Software, Version 1.2(10) for ACI
- Release Notes for the Cisco ASA Device Package Software, Version 1.2(9) for ACI
- Release Notes for the Cisco ASA Series, 9.14(x)
- Cisco Secure Firewall ASA New Features by Release
- Cisco Firepower Release Notes, Version 6.2.3
- Cisco Firepower Release Notes, Version 6.2.3.x Patches
- Cisco Firepower Release Notes, Version 6.5.0 Patches
- Firepower 마이그레이션 툴 릴리즈 노트 (PDF)
Release Notes
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Reference
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ASA Command Reference
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Firepower Threat Defense Command Reference
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Translations
Command References
- Navigating the Cisco Secure Firewall Migration Tool Documentation
- Navigating the Cisco Secure Firewall ASA Series Documentation
- Navigating the Cisco Secure Firewall Threat Defense Documentation
- Welcome to the Cisco ASA 5500-X Series
- Welcome to the Cisco ASA 5505
- Welcome to the Cisco ASA 5585-X
Documentation Roadmaps
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Feature Licenses
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Open Source Licenses
- Open Source Licensing Information for Releases 6.4 and Later
- Open Source Used In Cisco Firepower Version 6.2.3 (PDF)
- Open Source Used In Cisco Firepower Version 6.2.2 (PDF)
- Open Source Used In Firepower System Version 6.2 (PDF)
- Open Source Used In Firepower System Version 6.1 (PDF)
- Open Source Licensing Information (PDF)
- Open Source Used In Context Directory Agent 1.0 (PDF)
Licensing Information
- Cisco Secure Firewall Reference Guide
Technical References
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Design
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Install and Upgrade
- Migrating Cisco Secure Firewall ASA to Cisco Secure Firewall Threat Defense with the Migration Tool
- Migrating Microsoft Azure Native Firewall to Cisco Secure Firewall Threat Defense with the Secure Firewall Migration Tool
- Migrating ASA with FirePOWER Services (FPS) Firewall to Cisco Secure Firewall Threat Defense with the Migration Tool
- Migrating Check Point Firewall to Cisco Secure Firewall Threat Defense with the Migration Tool
- Migrating Fortinet Firewall to Cisco Secure Firewall Threat Defense with the Migration Tool
- Migrating Palo Alto Networks Firewall to Cisco Secure Firewall Threat Defense with the Migration Tool
- Cisco Secure Firewall ASA Upgrade Guide
- Cisco Secure Firewall ASA and Threat Defense Reimage Guide
- Migrating Firewalls with the Firewall Migration Tool in Firewall in Security Cloud Control
- Cisco Secure Firewall ASA to Threat Defense Feature Mapping
- Migrating Cisco Secure Firewall ASA to Cisco Multicloud Defense with the Migration Tool
- Migrating Fortinet Firewall to Cisco Multicloud Defense Using the Secure Firewall Migration Tool
- Migrating Palo Alto Networks Firewall to Cisco Multicloud Defense with the Migration Tool
- Migrating Check Point Firewall to Cisco Multicloud Defense Using the Secure Firewall Migration Tool
- Migrating from the Cisco ASA 5500 to the Cisco Adaptive Security Virtual Appliance
Install and Upgrade Guides
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Configuration
- Configure ASA Border Gateway Protocol
- Configure Firepower Threat Defense (FTD) Management Interface
- Configure Adaptive Security Appliance (ASA) Syslog
- Configure ASA: SSL Digital Certificate Installation and Renewal
- Configure AnyConnect Client Access to Local LAN
- Configure the ASA for Redundant or Backup ISP Links
- Configure VPN Filters on ASA
- Disable SSH Server CBC Mode Ciphers on ASA
- Configure ASA VPN Posture with CSD, DAP and AnyConnect 4.0
- Configure a Site-to-Site VPN Tunnel with ASA and Strongswan
- Configure Network Address Translation and ACLs on an ASA Firewall
- Configure AnyConnect VPN Client U-turn Traffic on ASA 9.X
- Use LDAP Attribute Maps Configuration Example
- Configure FTD from ASA Configuration File with Firepower Migration Tool
- ASA: Smart Tunnel using ASDM Configuration Example
Configuration Examples and TechNotes
- Cisco Secure Firewall ASA HTTP Interface for Automation
- Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.4
- Firepower Management Center Configuration Guide, Version 6.0.1
- Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.6
- Cisco Secure Firewall ASA NetFlow Implementation Guide
- Firepower Management Center Configuration Guide, Version 6.6
- Cisco Firepower Threat Defense Hardening Guide, Version 7.0
- Cisco Secure Firewall Threat Defense Hardening Guide, Version 7.2
- Firepower Management Center Configuration Guide, Version 6.4
- Firepower Management Center Configuration Guide, Version 6.2.3
- About the ASA REST API
- Cisco Secure Firewall ASA Legacy Feature Guide
- Cisco Secure Firewall ASA Botnet Traffic Filter Guide
- Cisco Secure Firewall ASA Unified Communications Guide
- SNMP Version 3 Tools Implementation Guide
Configuration Guides
- Cisco Secure Firewall Threat Defense REST API Guide
Programming Guides
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Maintain and Operate
- Optimize AnyConnect Split Tunnel for Microsoft Office 365/Webex
- EEM Examples for Different VPN Scenarios on ASA
Maintain and Operate TechNotes
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Troubleshooting
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Syslog and Error Messages
- Cisco Secure Firewall Threat Defense Syslog Messages
- Cisco Secure Firewall ASA Series Syslog Messages
Error and System Messages
- ASA FAQ: How do you interpret the syslogs generated by the ASA when it builds or tears down connections?
- ASA FAQ: What happens after failover if dynamic routes are synchronized?
- ASA - When and why to use the write standby command
- Why Does the ASA have xlate Entries with Idle Values Longer than the Configured Timeouts?
- ASA 5500 Series Adaptive Security Appliance FAQ
Support FAQ
- Monitor and Troubleshoot ASA Performance Issues
- Use ASA IKEv2 Debugs for Site-to-Site VPN with PSKs
- Understand and Use Debug Commands to Troubleshoot IPsec
- Configure Site-to-Site IKEv2 Tunnel between ASA and Router
- Understand ASA High Availability MAC Table Synchronization on Transparent Mode with HSRP Routers
- Configure ASA Version 9 Port Forwarding with NAT
- Fix AnyConnect Cryptographic Algorithms Error with FIPS Enabled
- AnyConnect VPN Client Troubleshooting Guide - Common Problems
- ASA VPN Load Balancing Director Election Process
- Cut-Through and Direct ASA Authentication Configuration Example
- ASA 8.3 Issue: MSS Exceeded - HTTP Clients Cannot Browse to Some Websites
- MPTCP and Product Support Overview
- Troubleshoot AnyConnect VPN Phone - IP Phones, ASA, and CUCM
- ASA Throughput and Connection Speed Troubleshooting and Analyzing Packet Captures
- Disable Service Module Monitoring on ASA to Avoid Unwanted Failover Events (SFR/CX/IPS/CSC).
Troubleshooting TechNotes
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Literature
- Oxford University Hospital Customer Case Study (PDF - 425 KB)
- Wireless quality gives Messe Frankfurt powerful tools with multiple benefits for events (PDF - 182 KB)
- Frankfurt Airport transforms workplace efficiency with WiFi next generation (PDF - 253 KB)
Case Studies
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