Today's vehicles are increasingly dependent on software to control their functions. Updating and maintaining software in vehicles has therefore become a costly process for the automotive industry. The introduction of wireless communication in vehicles can greatly improve vehicle maintenance and also bring many other new applications to vehicles. However, safety was not considered during the development of the vehicle. As it is a safety-critical vehicle, it is crucial that such new remote services do not violate the vehicle's safety requirements. Thus, this thesis outlines the status of cybersecurity in the automotive sector by identifying the common vulnerabilities and threats arising from current network topologies and communication interfaces.