CVE-2026-8290: OPEN5GS

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smf_nsmf_handle_update_data_in_vsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. 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.

Affected products

• OPEN5GS OPEN5GS: up to and including 2.7.7

Published 2026-05-11. Last modified 2026-06-17.