CVSS v3.1 Score Calculator
Calculate official Common Vulnerability Scoring System (CVSS v3.1) Base, Temporal, and Environmental scores.
How to Use CVSS v3.1 Score Calculator
Select metrics: Attack Vector (AV), Attack Complexity (AC), Privileges Required (PR), User Interaction (UI), Scope (S), Confidentiality (C), Integrity (I), Availability (A).
The calculator computes the exact Base Score (0.0 to 10.0) and Severity Rating (Low, Medium, High, Critical).
Copy the CVSS v3.1 vector string.
CVSS v3.1 Score Calculator runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
What score qualifies as a CRITICAL vulnerability?
A CVSS Base Score between 9.0 and 10.0 is classified as Critical.
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