CVSS Calculator

Base Metrics
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Impact Bias

Temporal Metrics
Exploitability
Remediation Level
Report Confidence

Environmental Metrics
Collateral Damage Potential
Target Distribution

This CVSS calculator was developed as an example to go along with a blog posting about CVSS written by PatchAdvisor's VP of Research & Development, Bryan Batchelder.

PatchAdvisor is on board with CVSS, and features a CVSS risk model as part of its vulnerability intelligence feed, PatchAdvisor Source.

If you would like to review the official NIAC report, which outlines CVSS, you can find it here (pdf).  There is also a great presentation about CVSS (pdf) that Mike Schiffman has been giving recently.

Thanks to Piotr Biziorek for finding a flaw in our environmental metrics calculation.