CVSS 4.0 Calculator

Below is the fully functional CVSS 4.0 Calculator. Use it to assess the severity of security vulnerabilities.

About This Calculator

CVSS 4.0, or the Common Vulnerability Scoring System 4.0, is a standardized framework for assessing and rating the severity of security vulnerabilities.

CVSS 4.0 calculator is designed to help you evaluate the severity of security vulnerabilities with precision. It follows the Common Vulnerability Scoring System (CVSS) 4.0 standards, which is a free and open standard owned and managed by FIRST.org . Based on the metric values you enter, the CVSS calculator applies the formula specified in the CVSS version 4.0 standard  to produce scores.