CVE lookup + vulnerability check + threat intelligence — search NIST NVD + CISA KEV (Known Exploited Vulnerabilities) by keyword, vendor, product, or CVE ID. Returns CVSS score, severity rating, exploitability, MITRE ATT&CK technique mapping. For security agents, threat intelligence, EU DORA ICT risk assessment, NIS2 vendor due diligence, supply chain security audit, SOC2 evidence, ISO 27001 gap analysis.