There is a NULL pointer dereference vulnerability in VTK before 9.2.5, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.

'/cgi-bin/admin/downloadMedias.cgi' of the web service in most of the VIVOTEK Network Cameras is vulnerable, which allows remote attackers to read any file on the camera's Linux filesystem via a crafted HTTP request containing ".." sequences. This vulnerability is already verified on VIVOTEK Network Camera IB8369/FD8164/FD816BA; most others have similar firmware that may be affected.

'/cgi-bin/admin/testserver.cgi' of the web service in most of the VIVOTEK Network Cameras is vulnerable to shell command injection, which allows remote attackers to execute any shell command as root via a crafted HTTP request. This vulnerability is already verified on VIVOTEK Network Camera IB8369/FD8164/FD816BA; most others have similar firmware that may be affected. An attack uses shell metacharacters in the senderemail parameter.