We are receiving following message on one of the user databases and unable to repair via DBCC check DB. ALso, we don't have clean backups for last 3-4 months. Please advise on how to fix the issue.
Msg 8992, Level 16, State 1, Line 1
Check Catalog Msg 3853, State 1:
Attribute of row in sys.columns does not have a matching row in sys.objects