A vulnerability was found in Open5GS up to 2.7.2. It has been declared as problematic. Affected by this vulnerability is the function gmmstateauthentication of the file src/amf/gmm-sm.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. This vulnerability allows a single UE to crash the AMF, resulting in the complete loss of mobility and session management services and causing a network-wide outage. All registered UEs will lose connectivity, and new registrations will be blocked until the AMF is restarted, leading to a high availability impact. The exploit has been disclosed to the public and may be used. The patch is named e31e9965f00d9c744a7f728497cb4f3e97744ee8. It is recommended to apply a patch to fix this issue.
[
{
"target": {
"file": "src/amf/gmm-sm.c",
"function": "gmm_state_authentication"
},
"signature_type": "Function",
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2025-1893-92a56add",
"digest": {
"function_hash": "174147939507531387888163707997447221142",
"length": 8015.0
},
"source": "https://github.com/open5gs/open5gs/commit/e31e9965f00d9c744a7f728497cb4f3e97744ee8"
}
]