Abstract
<jats:p>Industrial Control Systems are important systems that control critical infrastructures. Ensuring the security of these critical infrastructures against cyber attacks and ensuring their operational continuity are important. It is also vital that systems are regularly scanned for vulnerabilities and that the identified vulnerabilities are isolated or patched. In this study, it is aimed to contribute to the security of industrial control systems by scanning for vulnerabilities related to operational technology security. Open source vulnerability scanning software was used in this study. After the vulnerability scan, critical update notifications and patches of the vendors and Common Vulnerabilities and Exposures records were taken into consideration for remediation.</jats:p>