IBM Storwize V7000 Unified 1.3.x and 1.4.x before 1.4.2.0 does not properly handle device files that are created with the NFS protocol but accessed with a non-NFS protocol, which allows remote authenticated users to obtain sensitive information, modify programs or files, or cause a denial of service (device crash) via a (1) CIFS, (2) HTTPS, (3) SCP, or (4) SFTP operation.