CVE-2026-8121 | Open5GS up to 2.7.7 NSSF /lib/sbi/conv.c ogs_sbi_parse_plmn_list denial of service (Issue 4433 / CNNVD-202605-1871)

A vulnerability was found in Open5GS up to 2.7.7. It has been rated as problematic. The impacted element is the function ogs_sbi_parse_plmn_list in the library /lib/sbi/conv.c of the component NSSF. The manipulation leads to denial of service.

This vulnerability is uniquely identified as CVE-2026-8121. The attack is possible to be carried out remotely. Moreover, an exploit is present.

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