{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.1.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "de6bdb7a0d5963266c893cca59c86f55df348f57"
            }
          ],
          "repo": "https://github.com/free5gc/free5gc",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.",
  "id": "CVE-2026-1973",
  "modified": "2026-03-15T21:47:46.683212449Z",
  "published": "2026-02-06T02:16:05.620Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/free5gc/free5gc/"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?id.344495"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/free5gc/free5gc/issues/815"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/free5gc/free5gc/issues/815#issue-3832032062"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/free5gc/smf/pull/189"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.344495"
    },
    {
      "type": "EVIDENCE",
      "url": "https://vuldb.com/?submit.743236"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}