Ella Core panics when processing malformed UL NAS Transport NAS messages without a Request Type.
An attacker able to send crafted NAS messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required.
Add a guard when receiving an UL NAS Message without a Request Type given no SM Context.
{
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-19T17:47:12Z",
"nvd_published_at": "2026-03-24T00:16:30Z",
"severity": "MODERATE"
}