{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "150146e3058a493d5accf6d5f76ff450468d7bd7"
            }
          ],
          "repo": "https://github.com/eipstackgroup/opener",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may result in a denial-of-service condition.",
  "id": "CVE-2021-27498",
  "modified": "2026-03-15T13:48:10.769922275Z",
  "published": "2022-05-12T20:15:13.843Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/EIPStackGroup/OpENer"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-105-02"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}