Definition
A vulnerability assessment is a systematic process for identifying, quantifying, and prioritizing security weaknesses within an organization's systems and networks. It involves scanning systems for known vulnerabilities, analyzing the results, and reporting on potential risks. This proactive approach is crucial for understanding an organization's security posture and making informed decisions about risk mitigation. For instance, a vulnerability assessment might uncover an unpatched server that is susceptible to a known exploit. It differs from penetration testing, which actively attempts to exploit vulnerabilities, whereas assessment focuses on identification and reporting. This concept is fundamental to domains covered on exams like CompTIA Security+, CySA+, and CISSP.