Another day, another vendor is caught running critical infrastructure on expired OS’s. This time Medicine, and Siemens medical scanners. This ICS-CERT advisory points out that Siemens PET-CT solutions are running on Windows 7, un-patched by Siemens since 2015 and thus at least 3 known security holes exposed. The corresponding Siemens advisory is to disable network connections for the devices until patched. I wonder how many more proprietary solutions with this issue we will come across.