{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.4.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "6f7df75d85786b0e169ea007be959a51159a83cb"
            }
          ],
          "repo": "https://github.com/mz-automation/libiec61850",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.",
  "id": "CVE-2020-7054",
  "modified": "2026-03-13T21:51:20.537100163Z",
  "published": "2020-01-14T21:15:16.707Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://github.com/mz-automation/libiec61850/issues/200"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}