CVE-2024-56921: OPEN5GS

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Open5gs v2.7.2. InitialUEMessage, Registration request sent at a specific time can crash AMF due to incorrect error handling of gmm_state_exception() function upon receipt of the Nausf_UEAuthentication_Authenticate response.

Affected products

• OPEN5GS OPEN5GS: version 2.7.2 only

Published 2025-02-03. Last modified 2026-06-17.