Comprehensive and Detailed Step-by-Step CWE (A): Common Weakness Enumeration lists software flaws but doesn't provide risk severity ratings. CVSS (B): Common Vulnerability Scoring System is used to evaluate and score the severity of software vulnerabilities, helping prioritize remediation efforts. CWSS (C): Common Weakness Scoring System evaluates software weaknesses but is less commonly used compared to CVSS for vulnerability scoring. CVE (D): Common Vulnerabilities and Exposures identifies and catalogs vulnerabilities but does not calculate severity. Reference: CompTIA Cloud+ CV0-004 Study Guide, Objective 4.1: Identify and classify vulnerabilities in a cloud environment.