CVSS v3.1 Calculator

Calculate CVSS v3.1 base scores for vulnerability severity rating

Calculate CVSS v3.1 (Common Vulnerability Scoring System) base scores using the official NIST/FIRST algorithm. Select all eight base metrics including Attack Vector, Complexity, Privileges Required, User Interaction, Scope, and CIA impacts. Generates the official vector string, exploitability and impact subscores, and color-coded severity ratings from None to Critical.