CVE-2026-8121 MEDIUM

CVE-2026-8121: Open5GS NSSF conv.c ogs_sbi_parse_plmn_list denial of service

Vendor N/A
Product Open5GS
Weakness CWE-404
Published May 8, 2026
Last update May 8, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability has been found in Open5GS up to 2.7.7. 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. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

May 8, 2026 CVE published
May 8, 2026 Record updated