EpssVulnAssessmentRelationship

Summary

Provides an EPSS assessment for a vulnerability.

Description

An EpssVulnAssessmentRelationship relationship describes the likelihood or probability that a vulnerability will be exploited in the wild, and the percentile ranking of probability relative to all other vulnerabilities' EPSS scores, using the Exploit Prediction Scoring System (EPSS) as defined at https://www.first.org/epss/model.

Constraints

  • The relationship type must be set to hasAssessmentFor.
  • The probability must be between 0 and 1.
  • The percentile must be between 0 and 1.

Syntax

{
  "@type": "EpssVulnAssessmentRelationship",
  "@id": "urn:spdx.dev:epss-CVE-2020-28498",
  "relationshipType": "hasAssessmentFor",
  "probability": 0.00105,
  "percentile": 0.42356,
  "from": "urn:spdx.dev:vuln-cve-2020-28498",
  "to": ["urn:product-acme-application-1.3"],
  "suppliedBy": ["urn:spdx.dev:agent-jane-doe"],
  "publishedTime": "2023-10-05T00:00:30Z"
}

Metadata

https://spdx.org/rdf/3.0.0/terms/Security/EpssVulnAssessmentRelationship

Name EpssVulnAssessmentRelationship
Instantiability Concrete
SubclassOf VulnAssessmentRelationship

Properties

Property Type minCount maxCount
percentile xsd:decimal 1 1
probability xsd:decimal 1 1
publishedTime /Core/DateTime 1 1