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 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.
A reachable assertion in the ogsnasemmdecode function of Open5GS v2.7.0 allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet with a zero-length EMM message length.
An issue in Open5GS v.2.7.0 allows an attacker to cause a denial of service via the 64 unsuccessful UE/gnb registration