Last reviewed and updated | October 20, 2026
CVSS
The Common Vulnerability Scoring System, a standard score for a vulnerability's technical severity that does not reflect business context.
Why it matters
- Severity is not the same as risk.
- Many teams start with CVSS and add context.
How it works
A 0 to 10 base score maintained by FIRST (Forum of Incident Response and Security Teams), with current version 4.0.