CVE-2017-12860
The Epson "EasyMP" software (tested on version 2.86) is designed to remotely stream a users computer to supporting projectors.These devices are authenticated using a unique 4-digit code, displayed on-screen – ensuring only those who can view it are streaming. In addition to the password, each projector (tested on PowerLite Pro G5650W and G6050W) has a hardocded "backdoor" code (2270), which authenticates to all devices.
Source: CVE-2017-12860