Radar systems are used to detect the existence, location, and trajectory of objects in space using electromagnetic waves. They are mainly used for tracking aircraft, missiles, satellites, and watercraft. In recent years, as technology has evolved, the use of radar systems has increased, along with reliance on their correct and reliable operation. Given this, the reliability and availability of information provided by radar systems is growing in importance. Although the field of cyber security has been continuously evolving, most studies conducted on protecting radar systems have focused on electronic warfare. Radar systems also include a wide variety of components, such as a communications system or SCADA system, which are also vulnerable to cyber attacks. In this study, we present a risk analysis for radar systems. First, we present an in depth review of the existing literature on related topics. Then, we describe the threats we identified and their possible outcome. Finally, we demonstrate the realization of an attack on a radar system created for this task. We conclude by identifying future research directions aiming at protecting advanced radar systems from cyber attacks.