CVE-2025-52288: OPEN5GS

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

Assertion failure in function ngap_build_downlink_nas_transport in file src/amf/ngap-build.c, the Access and Mobility Management Function (AMF) component, in Open5GS thru 2.7.5 allowing attackers to cause a denial of service or other unspecified impacts via repeated UE connect and disconnect message sequences.

Affected products

• OPEN5GS OPEN5GS: up to and including 2.7.5

Published 2025-09-08. Last modified 2026-06-17.