Why CVSS Isn't Enough: Prioritising Vulnerabilities with EPSS and CISA KEV

Short summary

CVSS measures vulnerability impact but not exploitation likelihood. EPSS and CISA KEV provide real-world exploitation signals; prioritize KEV items first, then sort by EPSS probability, use CVSS as tiebreaker. This framework dramatically improves patch prioritization efficiency.

• •CVSS alone is insufficient for practical vulnerability prioritization
• •EPSS predicts exploitation likelihood; CISA KEV flags confirmed active exploitation
• •Use KEV > EPSS > CVSS ranking to dramatically improve patching ROI

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