A vulnerability classified as problematic has been found in Open5GS up to 2.7.7 . This vulnerability affects the function smf_nsmf_handle_update_data_in_vsmf of the file /src/smf/nsmf-handler.c of the component SMF . The manipulation of the argument qosFlowProfile leads to denial of service. This vulnerability is referenced as CVE-2026-8289 . Remote exploitation of the attack is possible. Furthermore, an exploit is available. The project was informed of the problem early through an issue report