CVE-2025-52288 Denial of service in n/a

High 7.5 Published 8 Sep 2025 Updated 8 Sep 2025

Attackers can cause denial of service in Open5GS AMF by sending repeated UE connect and disconnect messages, triggering an assertion failure.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-52288?

CVE-2025-52288 is a high-severity denial of service vulnerability in Open5gs Open5gs, published on 8 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-400

Which versions are affected by CVE-2025-52288?

It affects 1 product.

Products include Open5gs Open5gs.

How do I fix CVE-2025-52288?

No fix has been published for CVE-2025-52288 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-52288 being exploited?

There is no known exploitation of CVE-2025-52288 in the wild and no public exploit code.

All Open5gs Open5gs vulnerabilities

Sources

Also known as GHSA-25w6-x449-427j.