Comparing CVSS, EPSS, KEV, SSVC, LEV, and PXS: From Scores to Security Proof

This blog critiques traditional vulnerability scoring systems (CVSS, EPSS, KEV, SSVC, LEV) as incomplete because they lack environment-specific validation, and presents Picus Exposure Score (PXS) as a control-aware, evidence-based method that uses adversarial simulation to determine whether vulnerabilities are actually exploitable in an organization, enabling more accurate prioritization and reduction of remediation noise.