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CVSS Qualitative Severity Rating Scale

CVSS Qualitative Severity Rating Scale (cvss:QS:1.0.0)

The CVSS Qualitative Severity Rating Scale provides a categorical representation of a CVSS Score.

Value Key Definition
None N No severity rating (0.0)
Low L Low (0.1 - 3.9)
Medium M Medium (4.0 - 6.9)
High H High (7.0 - 8.9)
Critical C Critical (9.0 - 10.0)
CVSS Qualitative Severity Rating Scale (cvss:QS:1.0.0) JSON Example
{
  "namespace": "cvss",
  "key": "QS",
  "version": "1.0.0",
  "name": "CVSS Qualitative Severity Rating Scale",
  "definition": "The CVSS Qualitative Severity Rating Scale provides a categorical representation of a CVSS Score.",
  "schemaVersion": "2.0.0",
  "values": [
    {
      "key": "N",
      "name": "None",
      "definition": "No severity rating (0.0)"
    },
    {
      "key": "L",
      "name": "Low",
      "definition": "Low (0.1 - 3.9)"
    },
    {
      "key": "M",
      "name": "Medium",
      "definition": "Medium (4.0 - 6.9)"
    },
    {
      "key": "H",
      "name": "High",
      "definition": "High (7.0 - 8.9)"
    },
    {
      "key": "C",
      "name": "Critical",
      "definition": "Critical (9.0 - 10.0)"
    }
  ]
}

The CVSS Qualitative Severity Rating Scale is a set of labels that describe the severity of a vulnerability based on the CVSS Score.