{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "76b95cf"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "76b95cf"
            }
          ],
          "repo": "https://github.com/eipstackgroup/opener",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75347.json"
  },
  "details": "EIPStackGroup OpENer v2.3 and master up to commit 76b95cf contain an expired pointer dereference vulnerability in the EtherNet/IP Common Packet Format (CPF) handling logic. This allows a remote attacker to cause a denial of service.",
  "id": "CVE-2026-75347",
  "modified": "2026-10-28T02:31:10.857076296Z",
  "published": "2026-10-09T00:00:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/cpf.c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/encap.c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/EIPStackGroup/OpENer/blob/master/source/src/ports/generic_networkhandler.c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75347.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75347"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/EIPStackGroup/OpENer/issues/575"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N",
      "type": "CVSS_V3"
    }
  ]
}