Manufacturers have retroactively patched some of these interfaces. A firmware update might replace the vulnerable "viewerframe" system with a modern, authenticated HTML5 viewer.
: Likely refers to Motion , an open-source program that monitors video signals from cameras and can detect if a significant part of the picture has changed (motion detection). inurl viewerframe mode motion repack
UPnP often auto-forwards ports without your knowledge. Disable it and manually forward only what is necessary. inurl viewerframe mode motion repack