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 unauthenticated password modification vulnerability due to improper access control enforcement of the Configuration REST API. A remote attacker can exploit this, via a specially crafted request, to change the login password for the mediabrowser protected page.