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The emergence of the fifth generation network (5G) has stimulated strong interest from academia and industry in enabling technologies such as vehicular networks. Despite the benefits of 5G, including ultra-low latency, flexibility, increased bandwidth, and scalability, 5G security is still a topic of debate to figure out whether it can fully support the security requirements of vehicular networks. In this article, we discuss the present security solutions offered by 5G and discuss their impact on the current security standards that have been specifically developed for vehicular networks. We also identify the challenges and issues that must be addressed in order to provide seamless integration of 5G security with the current security standards used in vehicular networks.