Security advisory

{
  "id": "e611bc88f4d12a3bcb18e03a752e13a735ba4bda9d7793484442a466b35d868e",
  "url": "https://osv.dev/vulnerability/CVE-2025-63679",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-63679",
    "summary": "free5gc v4.1.0 and before is vulnerable to Buffer Overflow. When AMF receives an UplinkRANConfigurationTransfer NGAP message from a gNB, the AMF process crashes.",
    "evidence": "osv:CVE-2025-63679",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-63679",
      "aliases": [
        "CVE-2025-63679"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/free5gc/free5gc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "de6bdb7a0d5963266c893cca59c86f55df348f57"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.1.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.1.0",
            "v4.0.1",
            "v4.0.0",
            "v3.4.5",
            "v3.4.4",
            "v3.4.3",
            "v3.4.2",
            "v3.4.1",
            "v3.4.0",
            "v3.3.0",
            "v3.2.1",
            "v3.2.0",
            "v3.1.1",
            "v3.1.0",
            "v3.0.7",
            "v3.0.6",
            "v3.0.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-63679.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.719779623Z",
      "provider": "osv",
      "references": [
        "https://gist.github.com/DDGod2025/5483d94b028d7a0c111ca23844e8a94d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/63xxx/CVE-2025-63679.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-63679",
        "https://github.com/free5gc/free5gc/issues/725"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/63xxx/CVE-2025-63679.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-63679",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516927,
  "published_at": "2025-11-12T00:00:00+00:00"
}