A vulnerability classified as problematic has been found in Open5GS up to 2.7.7. Affected is the function udm_nudr_dr_handle_subscription_authentication of the file /src/udm/nudr-handler.c of the component authentication-subscription Endpoint. Performing a manipulation results in denial of service.

This vulnerability is known as CVE-2026-7779. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

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