Rate a vulnerability with the official CVSS v3.1 base metric group — Attack Vector, Attack Complexity, Privileges Required, User Interaction, Scope and Confidentiality / Integrity / Availability impact — and get the exact FIRST.org base score (0.0–10.0), the colour-coded severity band and the CVSS:3.1 vector string. Exports to Word and prints.
ℹ️ This calculator implements the official CVSS v3.1 base metric group exactly as defined in the FIRST Common Vulnerability Scoring System v3.1 Specification Document (FIRST.org). Only the base score is computed here (temporal and environmental metrics are not included). Verified against the FIRST.org reference calculator. Note that CVSS v4.0 also exists; this tool implements v3.1. The base score reflects the intrinsic severity of a vulnerability and should be combined with your own environmental context before prioritising remediation.