Barco ClickShare Button R9861500D01 devices before 1.9.0 allow Information Exposure. The encrypted ClickShare Button firmware contains the private key of a test device-certificate.
labs.f-secure.com/advisories/multiple-vulnerabilities-in-barco-clickshare/
www.barco.com/en/clickshare/firmware-update
www.barco.com/en/support/software/R33050069?majorVersion=01&minorVersion=09&patchVersion=01&buildVersion=007
www.barco.com/en/support/software/R33050070?majorVersion=01&minorVersion=09&patchVersion=01&buildVersion=007
www.barco.com/en/support/software/R33050095?majorVersion=01&minorVersion=09&patchVersion=01&buildVersion=007
www.barco.com/en/support/software/R33050125?majorVersion=01&minorVersion=09&patchVersion=01&buildVersion=007