Hi German,
There's a field called data.vulnerability.package.condition that I think it gives you what you're looking for.
The quickest way to see this alongside your vulnerabilities is through Vulnerability Detection > Events in the Wazuh dashboard. You can add data.vulnerability.package.condition as a column using the column picker or the field list on the left. Once it's there, you can sort by it to group all the Package unfixed ones together. Or you can add a filter.
Best regards.