NIST NVD Enrichment Policy Change: Prioritizing Vulnerabilities with Attacker Behavior Signals
Brief
As of April 15, 2026, NIST enriches only CVEs that appear in the CISA Known Exploited Vulnerabilities catalog, federal government software, or software designated critical under Executive Order 14028. Everything else carries a "Lowest Priority" status: no CVSS score, no affected product mappings, no weakness classification.
NIST enriched roughly 42,000 CVEs in 2025, and submissions in early 2026 are running about a third higher year-over-year. Industry estimates suggest the prioritized categories will cover only 15–20% of anticipated CVE volume going forward.
For teams whose vulnerability management workflows depend on CVSS scores from NVD, this could create an operational gap. The CVEs in the unenriched backlog can signify real vulnerabilities affecting real software. They don't necessarily stop mattering because NIST didn't get to them.