CVE-2025-5520

Medium

Description

A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmm_state_authentication/emm_state_authentication of the component AMF/MME. The manipulation leads to reachable assertion. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 9f5d133657850e6167231527514ee1364d37a884. It is recommended to apply a patch to fix this issue. This is a different issue than CVE-2025-1893.

SeverityMedium

CVSS5.3

Exploit probability—

ProductOpen5gs

PublishedJun 3, 2025

First seenJun 3, 2025

Weakness typeCWE-617CWE-617

How to fix

Patches

github.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a884

Affected products

Product	Affected versions	Fixed in
open5gs open5gs	2.7.0 ≤ v ≤ 2.7.3	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.