Technical and passive OSINT · Hosted free and open-data sources
NVD
Licence or access: free feeds/API
- status access
- free feeds/API
- i o and fit
- CVE/CPE/CVSS/references → vulnerability knowledge
- current limitations and safe interpretation
- no-key 5 requests/30s; key 50/30s; banner CPE ≠ target vulnerability
- official source
- API
Official sources
- API https://nvd.nist.gov/developers/vulnerabilities
Catalogued at the 2026-09-01 research baseline. Verify the licence, free-tier limits, API schema and source terms again before deployment, and record a version-pinned registry entry for whatever you select.