As of my last update in September 2021, some UK universities may accept students with an overall IELTS score of 5 bands for certain courses or foundation programs. However, individual university entry requirements vary, and it is advisable to check directly with the universities of interest to confirm their specific language proficiency requirements for admission. It's important to note that a score of 5 bands may limit options, and higher scores are generally preferred for most undergraduate and postgraduate programs.