{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.0.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "228ac5f7b8b0c3d160bccb3470901b3e87e756c9"
            }
          ],
          "repo": "https://github.com/free5gc/free5gc",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.",
  "id": "CVE-2025-56394",
  "modified": "2026-03-10T21:47:31.593121598Z",
  "published": "2025-09-23T18:15:35.207Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/free5gc/free5gc/issues/690"
    },
    {
      "type": "EVIDENCE",
      "url": "https://gist.github.com/DDGod2025/532691e3e2db9b47c67c3d153c026e62"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}