Serviio is a free media server. It allows you to stream your media files (music, video or images) to renderer devices (e.g. a TV set, Bluray player, games console or mobile phone) on your connected home network.
The version of Serviio installed on the remote Windows/Linux host is affected by an information disclosure vulnerability due to improper access control enforcement of the Configuration REST API. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to gain access to potentially sensitive information.