What's the issue?
There is at least one tempdb file over the checked usage percentage. The default value in sp_CheckTempdb is 50%.
Why is this a problem?
This may not be a problem if you regularly have tempdb files used above the tested percentage threshold. Then again, it may indicate you have one or more queries that could use refactoring to do less in tempdb.
What should you do about this?
Use sp_CheckTempdb with @Mode = 2 to see what is using tempdb currently. This may be expected, or there may be a poorly written query that is on the way towards using all available tempdb data or log space.
Vulnerability
Category
What do the Vulnerability Levels mean?
0 - Information only. This is stuff you should know about your instances like version and service account used, but if you don't know it…well, now you do.
1 - High vulnerability requiring action. These are the issues that could most likely lead to your company being front page news for all the wrong reasons. If your instances have any results at this level then we recommend cancelling that 3-martini lunch and instead huddling with your team to figure out when to address these issues.
2 - High vulnerability to review. These include settings and assigned permissions you should review soon, if not immediately. These findings may not necessarily indicate a clear vulnerability, but we've found unexpected vulnerabilities in these categories at many, many clients.
3 - Potential vulnerability to review. These are configurations or assigned permissions you may be using that could lead to problems for users. Or maybe they're just required for your applications. Either way, we recommend reviewing these to make sure these are correct.
4 – Low vulnerability with recommended action. These are typically security inconsistencies that should be addressed. They aren't likely to cause problems, but you should clean up the mess.