The University of Lausanne (UNIL) announced changes in January 2015 to its admissions requirements for the French Baccalaureate starting Fall 2015. Specifically, UNIL no longer recognizes the French Bac ES or the French Bac L without the mathematics options. See the requirements for France for specific detail.
Students obtaining a French Bac that is no longer recognized can take an admissions exam and/or submit a dossier, but only if they are either Swiss nationals or have a C Permit granting permanent residency. This document contains more information on options for applying to UNIL without a recognized diploma.
At this time, these restrictions on the French Bac apply only to UNIL and not to the other Swiss universities though there is concern that other universities might adopt the same policies.