Collect CMU CERT

[Hritik14]

https://www.kb.cert.org/vuls/

but what's their license ??

[armijnhemel]

I think that part of the answer can be found here: https://github.com/CERTCC/Vulnerability-Data-Archive (although this archive is no longer updated). There is a LICENSE.md file that seems to suggest that using the data internally within an organisation is fine, but when redistributing in modified form would require permission.