Multiple buffer overflows in the PocketNetNVRMediaClientAxCtrl.NVRMediaViewer.1 control in 3S Pocketnet Tech VMS allow remote attackers to execute arbitrary code via a crafted string to the (1) StartRecord, (2) StartRecordEx, (3) StartScheduledRecord, (4) SetDisplayText, (5) GetONVIFDeviceInformation, (6) GetONVIFProfiles, or (7) GetONVIFStreamUri method or a crafted filename to the (8) SaveCurrentImage or (9) SaveCurrentImageEx method.