{
  "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-2023-1424",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-1424",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-05-24T04:39:25.040Z",
    "updatedAt": "2025-03-05T18:59:00.469Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module",
      "summary": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.",
      "affected": [
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MT/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MT/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MT/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MR/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MR/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MR/ES",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MT/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MT/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MT/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MR/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MR/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MR/DS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MT/ESS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MT/ESS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MT/ESS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-32MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-64MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5U-80MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-32MT/D",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-64MT/D",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-96MT/D",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-32MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-64MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-96MT/DSS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Serial number 17X**** or later, versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-32MT/DS-TS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-32MT/DSS-TS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-F Series FX5UC-32MR/DS-TS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 1.220 to 1.281",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R00CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions 35 and prior",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R01CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions 35 and prior",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R02CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions 35 and prior",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R04CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R08CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R16CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R32CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R120CPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R04ENCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R08ENCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R16ENCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R32ENCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R120ENCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 12 to 68",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R08SFCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 26 to 31",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R16SFCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 26 to 31",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R32SFCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 26 to 31",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R120SFCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 26 to 31",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R08PCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 3 to 37",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R16PCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 3 to 37",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R32PCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 3 to 37",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC iQ-R Series R120PCPU",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "versions from 3 to 37",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}