Severity scoring entry (CVSS v2, v3, or v4).
CVSS vector string
Scoring system: 'CVSS_V2', 'CVSS_V3', or 'CVSS_V4'
'CVSS_V2'
'CVSS_V3'
'CVSS_V4'
Severity scoring entry (CVSS v2, v3, or v4).