Sometimes, vulnerabilities open to public but the response of vendor not as expected efficiency. Still remember that a announcement issued by US Cert on 6th Oct 2018. The details shown that the electronic manufacture product by Auto-Maskin has encountered four different vulnerabilities. Perhaps the remediation not release from manufacture in the moment because the firmware image store in the download repository is not recently.
Should you have interest in above topic? Below details are the vendor homepage and vulnerability notes articles for your reference.
Vulnerability Notes – Auto-Maskin DCU 210E RP 210E and Marine Pro Observer App https://www.kb.cert.org/vuls/id/176301
Vendor Home page https://www.auto-maskin.com/news