DELL EMC NetWorker is a unified backup and recovery software from Dell (DELL), Inc. A file upload vulnerability exists in Dell EMC NetWorker, which is caused by a malicious file that can be uploaded via Nsrexecd Nsrrcopy on Dell EMC NetWorker clients, and can be exploited to upload Trojan files to gain control of the server. The vulnerability can be exploited to upload Trojan files to gain control of the server.