A prioritization model is a decision framework used in vulnerability management to rank security flaws by likely danger, not just by how many exist. It weighs factors such as exploitability, whether the weakness is already being exploited, the criticality of the affected asset, internet exposure, and local environmental risk. The goal is to help defenders decide what to fix first when patch queues are larger than available staff and maintenance windows.
This matters because severity scores alone do not tell the whole story. A medium-severity flaw on a public-facing server with weak controls may be more urgent than a higher-scoring issue on an isolated test system. In real defenses, prioritization models feed triage workflows, patch scheduling, and escalation rules. In attacks, they help adversaries focus on the most promising targets; in defense, they help teams avoid spending time on low-impact noise and reduce the chance that a truly dangerous vulnerability remains open long enough to be weaponized.