Security flaw could allow data access and denial of service attacks between different network slices on a mobile operator’s 5G network. 5G architecture is based on what’s called a service-based architecture (SBA) that provides a modular framework to deploy a set of interconnected network functions, allowing consumers to discover and authorize their access to a plethora of services. Each network function of the SBA can offer a specific service but at the same time can also request a service from another network function. The findings were collectively designated as CVD-2021-0047 by AdaptiveMobile.
Source: https://thehackernews.com/2021/03/new-5g-flaw-exposes-priority-networks.html