How CVSS v4.0 works: characterizing and scoring vulnerabilities

The article discusses the Common Vulnerability Scoring System (CVSS), a standardized method for assessing software vulnerabilities, which helps organizations prioritize mitigation efforts. It outlines the components of CVSS, including base, temporal, and environmental metrics, and highlights the significant updates in CVSS v4.0, released in late 2023. Key changes include expanded metric groups, refined scoring terminology, greater flexibility for customization, and improved guidance for usability.

The scoring process involves assessing base metrics, incorporating threat metrics, and tailoring scores to specific environments. The update aims to provide more accurate and actionable vulnerability assessments, reflecting the evolving nature of software vulnerabilities.