If NCM cannot automatically download firmware vulnerability data (for example, because your network is not connected to the Internet), complete the steps in this article to import vulnerability data files from the National Institute of Standards and Technology (NIST) and then manually add them to your NCM server. NCM uses the information in these files to search for vulnerabilities that could affect your devices.

NCM helps identify risks to network security by detecting potential vulnerabilities in Cisco IOS, Cisco Adaptive Security Appliance (ASA), Cisco Nexus, and Juniper devices. NCM imports the firmware vulnerability warnings provided by National Institute of Standards and Technology (NIST), and correlates vulnerability data with managed nodes. Learn how to view firmware vulnerability details and update the remediation status, view firmware vulnerability reports, and troubleshoot firmware vulnerability reports.