How can I find  CPE of  dll in .NET?

For example, System.IO.Packaging 8.0.0 hav weakness.

https://www.nuget.org/packages/System.IO.Packaging/8.0.0

I have Vulnerability Management tool, I can receive notice of the weakness by registering CPE.

I want to obtain CPE of System.IO.Packaging, but where is it available from?

Thanks