We indeed compare versions against the latest version of the software. Though we also keep track of which versions are supported and also create an inventory with the CVEs and their risk. There are also vulnerability scanners incorporated. That is why we sometimes still show a version is outdated, while we don't know the actual version.
For now we spend more time into giving information on how to keep your system secure and make that as easy as possible. If we can present 1 solution to fix 22 cve exploits, we find that preferable to showing 22 issues that need to get fixed with detailed information about the cve. But should that data should still be findable for experts and is also shown our the data cards. (Except when the data isn't disclosed yet by the software manufacturer) So if you don't see the CVE, please tell us more details about the software that doesn't has vulnerabilities.