Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for LTE/NR networks. Versions of Open5GS 2.7.6 and earlier contain security vulnerabilities. These vulnerabilities stem from the ranuefindbyamfuengapid function in the context.c file of the...

CVE-2025-5520 Open5GS AMF/MME emm_state_authentication assertion

A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmmstateauthentication/emmstateauthentication of the component AMF/MME. The manipulation leads to reachable assertion. It is possible to launch the attack remotely. The exploit has be...