{
  "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-2023-5768",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-5768",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-12-04T14:33:47.898Z",
    "updatedAt": "2024-08-02T08:07:32.849Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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 IEC 60870-5-104 that affects the RTU500 series product versions listed below. \nIncomplete or wrong received APDU frame layout may \ncause blocking on link layer. Error reason was an endless blocking when reading incoming frames on link layer \nwith wrong length information of APDU or delayed reception \nof data octets.\n\n\nOnly communication link of affected HCI IEC 60870-5-104 \nis blocked. If attack sequence stops the communication to \nthe previously attacked link gets normal again.\n\n",
      "affected": [
        {
          "vendor": "Hitachi Energy",
          "product": "RTU500 series",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "RTU500 series CMU Firmware version 12.0.1 – 12.0.14",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 12.2.1 – 12.2.11",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 12.4.1 – 12.4.11 ",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 12.6.1 – 12.6.9 ",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 12.7.1 – 12.7.6",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 13.2.1 – 13.2.6 ",
              "status": "affected"
            },
            {
              "version": "RTU500 series CMU Firmware version 13.4.1 – 13.4.3 ",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}