Open5GS AMF nsmf-handler.c amf_nsmf_pdusession_handle_update_sm_context denial of service

{
  "id": "a466eb223eb47272d85c3f718d4a79ca9d672cd49434cffcaee5f9ed01b13a44",
  "url": "https://osv.dev/vulnerability/CVE-2025-1925",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Open5GS AMF nsmf-handler.c amf_nsmf_pdusession_handle_update_sm_context denial of service",
    "summary": "A vulnerability classified as problematic was found in Open5GS up to 2.7.2. Affected by this vulnerability is the function amf_nsmf_pdusession_handle_update_sm_context of the file src/amf/nsmf-handler.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. This vulnerability allows a single UE to crash the AMF, resulting in the complete loss of mobility and session management services and causing a network-wide outage. All registered UEs will lose connectivity, and new registrations will be blocked until the AMF is restarted, leading to a high availability impact. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue.",
    "evidence": "osv:CVE-2025-1925",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-1925",
      "aliases": [
        "CVE-2025-1925"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/open5gs/open5gs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "83e35bb2de7e67646fdba849580184422b10006a"
                },
                {
                  "last_affected": "43fa4857cce8af6b6ec3c8e3b0cbf99444948f76"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.7.0"
                      },
                      {
                        "last_affected": "2.7.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.7.1"
                      },
                      {
                        "last_affected": "2.7.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.7.2"
                      },
                      {
                        "last_affected": "2.7.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.7.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.7.0",
            "2.7.1",
            "2.7.2",
            "v2.7.2",
            "v2.7.1",
            "v2.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1925.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.339111228Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1925.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-1925",
        "https://vuldb.com/?submit.506038",
        "https://github.com/open5gs/open5gs/pull/3711",
        "https://vuldb.com/?ctiid.298513",
        "https://github.com/guoweifk/BugReport/blob/main/Open5GS%20AMF%20Denial%20of%20Service%20via%20PDU%20Session%20ID%20Conflict",
        "https://vuldb.com/?id.298513"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-404"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1925.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-1925",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506597,
  "published_at": "2025-03-04T13:09:24.363+00:00"
}