Vendor Security Activity Reports

Per-vendor CVE disclosure volume, severity composition, CISA KEV listings, and patch velocity. Every number sourced from NVD, CISA, MITRE cvelistV5, or a vendor advisory timestamp. No synthesized scores.

Generated May 28, 2026Cohort: 3 vendors with ≥10 CVE advisoriesMethodology ↗

VendorCVEsCrit+HighKEV rate
Ubuntu17,77544.0%(7,823)0.8%(150)
Red Hat15,76646.0%(7,246)1.3%(208)
Microsoft15,60656.6%(8,827)2.1%(327)