Global regulations and standards such as UNR-155 and ISO/SAE 21434 have been established, making cybersecurity measures for vehicles an essential requirement. Among these measures, vulnerability response is one of the important elements, and its successful implementation depends on seamless communication across the entire supply chain. However, the number of publicly disclosed vulnerabilities continues to grow, creating the challenge of how to share information efficiently and effectively. In this presentation, I will introduce examples of SWG activities that address this challenge.