CVE-2025-8531

Estado: AplazadaMedia (6.8)—

Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU, Q04UDPVCPU, Q06UDPVCPU, Q13UDPVCPU, and Q26UDPVCPU with the first 5 digits of serial No. "24082" to "27081" allows a remote attacker to cause an integer underflow by sending specially crafted packets to the affected product to stop Ethernet communication and the execution of control programs on the product, when the user authentication function is enabled. The user authentication function is enabled by default only when settings are configured by GX Works2, which complies with the Cybersecurity Law of the People's Republic of China, and is normally disabled.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Puntuación base: 6.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.02%
Percentil entre todas las CVEs puntuadas: 62
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (9)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

CWE

CWE-130

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-8531",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-8531",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-09-19T11:46:02.489151Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
      "affectedData": [
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q03UDVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q04UDVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q06UDVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q13UDVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q26UDVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q04UDPVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q06UDPVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q13UDPVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MELSEC-Q Series Q26UDPVCPU",
          "versions": [
            {
              "status": "affected",
              "version": "The first 5 digits of serial No. \"24082\" to \"27081\""
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-09-19T10:15:36.807",
  "references": [
    {
      "url": "https://jvn.jp/vu/JVNVU97846038/",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
    },
    {
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-02",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
    },
    {
      "url": "https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-013_en.pdf",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
      "description": [
        {
          "lang": "en",
          "value": "CWE-130"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU, Q04UDPVCPU, Q06UDPVCPU, Q13UDPVCPU, and Q26UDPVCPU with the first 5 digits of serial No. \"24082\" to \"27081\" allows a remote attacker to cause an integer underflow by sending specially crafted packets to the affected product to stop Ethernet communication and the execution of control programs on the product, when the user authentication function is enabled. The user authentication function is enabled by default only when settings are configured by GX Works2, which complies with the Cybersecurity Law of the People's Republic of China, and is normally disabled."
    }
  ],
  "lastModified": "2026-06-17T10:07:10.013",
  "sourceIdentifier": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
}