Vulnerability in Open5gs
CVE-2026-7779
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 man…
EPSS: 0.001 (28.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- N/a Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- VDB-360976 | Open5GS authentication-subscription Endpoint nudr-handler.c udm_nudr_dr_handle_subscription_authentication denial of service (technical-description, vdb-entry)
- VDB-360976 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #806249 | Open5gs UDM v2.7.7 Denial of Service (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-7779?
- CVE-2026-7779 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-04.
- How severe is CVE-2026-7779?
- Medium severity. CVSS v3 base score is 4.3 out of 10.