Normally, CVEs are added to the NVD CVE database and never removed. But can a CVE ID just disappear from the database after being there for a while? (Maybe because the entry was a complete mistake, or by whatever else reason.)
NVD description mentions
Rejected mark; obviously in this case the CVE ID still remains in the database.
I need to know whether I should handle this case by software which periodically queries NVD.