free5GC has Null Pointer Dereference in UDM, Leading to Service Panic

{
  "id": "c3fdfda0a345f94ee66a1886810f9548f99a40ce4bb0dd51dafa7de8899e2780",
  "url": "https://osv.dev/vulnerability/CVE-2025-69252",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "free5GC has Null Pointer Dereference in UDM, Leading to Service Panic",
    "summary": "free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 have a NULL Pointer Dereference vulnerability. Remote unauthenticated attackers can trigger a service panic (Denial of Service) by sending a crafted PUT request with an unexpected ueId, crashing the UDM service. All deployments of free5GC using the UDM component may be affected. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.",
    "evidence": "osv:CVE-2025-69252",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-69252",
      "aliases": [
        "CVE-2025-69252",
        "GHSA-v8cv-qvf6-9rpm"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/free5gc/udm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "504b14458d156558b3c0ade7107b86b3d5e72998"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:free5gc:udm:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "504b14458d156558b3c0ade7107b86b3d5e72998"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.1",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-69252.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.255798914Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69252.json",
        "https://github.com/free5gc/free5gc/security/advisories/GHSA-v8cv-qvf6-9rpm",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-69252",
        "https://github.com/free5gc/free5gc/issues/752",
        "https://github.com/free5gc/udm/commit/504b14458d156558b3c0ade7107b86b3d5e72998",
        "https://github.com/free5gc/udm/pull/76"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69252.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-69252",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504626,
  "published_at": "2026-02-23T23:56:55.889+00:00"
}