{
  "schema_version": "1.4.0",
  "id": "GHSA-j22f-7hvx-mqp8",
  "modified": "2024-04-04T00:02:34Z",
  "published": "2022-05-24T16:44:02Z",
  "aliases": [
    "CVE-2018-20818"
  ],
  "details": "A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20818"
    },
    {
      "type": "WEB",
      "url": "https://arxiv.org/pdf/1809.07477"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "severity": "CRITICAL",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-22T11:29:00Z"
  }
}