Although the paper will briefly touch upon other aspects of vulnerability, its focus will be on the vulnerability in the context of persons with disabilities, which derives from their cognitive, intellectual of physical impairments. The complex background created through interweaving of concepts of protection of persons with disabilities developed in Member States (hereinafter: MS) will be considered. Protection of ‘vulnerable’ consumers in Croatia will illustrate the influence of EU policy in the field on the standards of protection of vulnerable persons in the legal systems of MS. Main questions the paper seeks to answer are, whether persons with disabilities as vulnerable persons have been redefined or changed by the virtue of their activities or statuses through the measures introduced in EU law and if and how the traditional understanding of the term ‘vulnerable person’ in the context of protection of persons with disabilities has been modified during the process of EU integration.