{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-2081",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-2081",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2024-01-04T09:15:30.332Z",
    "updatedAt": "2025-05-22T18:20:49.318Z",
    "importedAt": "2026-10-24T01:56:40.826Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is enabled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500 in a high rate, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a lack of flood control which eventually if exploited causes an internal stack overflow in the HCI Modbus TCP function.",
      "affected": [
        {
          "vendor": "Hitachi Energy",
          "product": "RTU500 series CMU firmware",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "12.0.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "12.0.13.0"
            },
            {
              "version": "12.2.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "12.2.11.0"
            },
            {
              "version": "12.4.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "12.4.11.0"
            },
            {
              "version": "12.6.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "12.6.7.0"
            },
            {
              "version": "12.7.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "12.7.3.0"
            },
            {
              "version": "13.2.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "13.2.4.0"
            },
            {
              "version": "13.3.1.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}