CVSS calculator
Versions 4.0, 3.1, 3.0, 2.0 and 1.0. Paste a vector or choose the metrics.
1.0 is for historical scores, with metrics saved as JSON. Complete every metric in an optional group to calculate it.
Compare scores
Up to 20 snapshots, kept only on this page. Changing versions does not convert metrics.
Batch calculation
One vector per line; versions can be mixed. Up to 1,000 lines and 1 MB. For 1.0, use one-line JSON.