Seiko SkyBridge MB-A200 v01.00.04 and below was discovered to contain a command injection vulnerability via the Ping parameter at ping_exec.cgi.
https://www.seiko-sol.co.jp/products/skybridge/lineup/mb-a200/
https://gist.github.com/Nwqda/0db1fc6cfa39d7f0592d44e18c40146e