What is vulnerability scanner?

A vulnerability scanner is a software application or tool used to identify and assess security weaknesses (vulnerabilities) in computer systems, networks, and applications. It works by automatically scanning systems for known vulnerabilities based on a database of common weaknesses and misconfigurations. Vulnerability scanners are commonly used by security professionals and system administrators to proactively identify and remediate security flaws before they can be exploited by attackers. They help organizations improve their security posture and reduce the risk of cyberattacks.