A vulnerability was found in Open5GS up to 2.7.6 . It has been rated as critical . This impacts the function ran_ue_find_by_amf_ue_ngap_id of the file src/amf/context.c of the component AMF/MME . Performing a manipulation results in improper authorization. This vulnerability is cataloged as CVE-2026-8743 . It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to install a patch to address this issue.