Direct Entry Guided Rubric

Standard CVSS v4.0 base scoring, per the FIRST.org specification. Choose values for each metric directly; best if you're already familiar with CVSS 4.0's metric set (Attack Requirements, and separate Vulnerable System / Subsequent System impact metrics). Looking for CVSS v3.1 instead? Use the CVSS 3.1 scoring tool.

Findings are kept only in your current browser session and are cleared when it ends — nothing is saved to a database or shared with anyone.

Leave as-is to auto-assign the next ID, following your own numbering pattern if you use a custom one, or type your own.
If this finding has a public CVE with a published CVSS v4.0 score, look it up to prefill the description and metrics below. NVD's coverage of v4.0 scores is still limited.
Exploitability Metrics
Vulnerable System Impact
Subsequent System Impact

Found a bug or have feedback on this tool? Open an issue on GitHub.