A vulnerability was found in Open5GS up to 2.7.7. It has been classified as problematic. This affects the function amf_namf_comm_handle_registration_status_update_request in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/{ueContextId}/transfer-update. Performing a manipulation of the argument ueContextId results in denial of service.

This vulnerability is identified as CVE-2026-7535. The attack can be initiated remotely. Additionally, an exploit exists.

The project was informed of the problem early through an issue report but has not responded yet.