Zivif PR115-204-P-RS V2.3.4.2103 and V4.7.4.2121 (and possibly in-between versions) web cameras are vulnerable to unauthenticated blind remote command injection via CGI scripts used as part of the web interface as demonstrated by a cgi-bin/iptest.cgi?cmd=iptest.cgi&-time=\1504225666237\&-url=$(reboot) request.