@Saborni Barua Thank you for reaching out to us, We have an option to export vulnerabilities, as detailed in this Q&A: How to Export Microsoft Defender Endpoint Weakness. Please review it to see if it meets your needs.
Additionally, we provide an API that allows you to retrieve vulnerabilities based on the resource type: Microsoft Defender Endpoint Vulnerability API.
Let me know if this points you in the right direction or if you need further assistance!