CVE-2026-7779 MEDIUM

CVE-2026-7779: Open5GS authentication-subscription Endpoint nudr-handler.c udm_nudr_dr_handle_subscription_authentication denial of service

Vendor N/A
Product Open5GS
Weakness CWE-404
Published May 4, 2026
Last update May 5, 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 security flaw has been discovered 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. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

May 4, 2026 CVE published
May 5, 2026 Record updated