KEV (Known Exploited Vulnerabilities) - Potential Format (BCP-07)

Updated with ENISA CNW KEV import

and a table of mapping was created to see if we don’t miss anything in the BCP-07 specification:

KEV → BCP-07 Mapping Table

Concept CISA KEV (JSON) ENISA / EUVD KEV (CSV) GCVE BCP-07 Field Mapping Rationale
Vulnerability identifier cveID CVE (primary), EUVD (secondary) vulnerability.vulnId CVE preferred when available; EUVD preserved as reference
Exploitation claim Presence in KEV catalog Presence in KEV catalog status.exploited = true KEV is a binary assertion
Assertion authority Implicit (CISA catalog) Implicit (ENISA/CNW catalog) evidence.source Explicit attribution (cisa-kev, enisa-cnw-kev)
Assertion strength KEV inclusion KEV inclusion status.status_reason = confirmed Closest BCP-07 semantic match
Date added / reported dateAdded dateReported timestamps.asserted_at Date the authority declared exploitation
First known exploitation Not provided Not provided timestamps.first_seen_at Conservatively set equal to asserted date
Local ingestion time Not provided Not provided timestamps.recorded_at Added by the collector
Status update time dateAdded dateReported status.status_updated_at Only authoritative timestamp available
Evidence type KEV publication KEV publication evidence.type vendor_report (CISA), csirt_report (ENISA)
Exploitation signal Implicit exploitationType evidence.signal ENISA ransomwareconfirmed_compromise, otherwise successful_exploitation
Confidence Implicit Implicit evidence.confidence Fixed conservative defaults (CISA 0.8 / ENISA 0.75)
Affected product / vendor vendorProject, product vendorProject, product scope.notes Preserved as human-readable context only
Description / notes shortDescription, notes shortDescription, notes scope.notes, evidence.details Avoids inventing structured scope
Ransomware indicator knownRansomwareCampaignUse exploitationType evidence.details Retained verbatim for traceability
Threat actors Not provided threatActorsExploiting evidence.details No normalization or attribution inferred
Geography / sector Not provided Not provided (inferred from CNW members?) Not populated BCP-07 forbids guessing
References Implicit Implicit references[] CVE, EUVD, and catalog URLs added
1 Like