PRIORITIZING NETWORK SECURITY VULNERABILITIES USING ACCESSIBILITY

An enterprise network includes hosts running services. Some of the services have security vulnerabilities. There are one or more threat zones associated with the network. For example, a firewall may create two threat zones, one internal to the firewall and one external to it. A device profiler in the first threat zone profiles the hosts on the network and identifies the vulnerabilities that are present. A device profiler in the second threat zone determines which of the identified vulnerabilities are accessible from its zone. A risk module calculates the risk associated with a vulnerability based on the vulnerability's severity, threat level metrics for the threat zones, and an asset value of the host with the vulnerability. A reporting module prioritizes the vulnerabilities based on their risks.