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CVE-2026-12667

Estado: Pendiente de análisisAlta (7.1)—

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service due to improper handling of XML external entities in RFH2 folder parsing.

CVSS

Probabilidad de explotación (EPSS)

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:L sin UI requiere acceso remoto autenticado a servicio IBM MQ (T1210). XXE en RFH2 permite lectura de archivos (T1005, CWE-611) y DoS limitado (T1499).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

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

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-12667",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-12667",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-15T19:00:28.792537Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@us.ibm.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*"
          ],
          "vendor": "IBM",
          "product": "MQ",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.1.0.37 LTS"
            },
            {
              "status": "affected",
              "version": "9.2.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.2.0.43 LTS"
            },
            {
              "status": "affected",
              "version": "9.3.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.3.0.41 LTS"
            },
            {
              "status": "affected",
              "version": "9.3.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.3.5.1 CD"
            },
            {
              "status": "affected",
              "version": "9.4.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.4.0.25 LTS"
            },
            {
              "status": "affected",
              "version": "9.4.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.4.5.1 CD"
            },
            {
              "status": "affected",
              "version": "10.0.0.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-15T18:17:14.420",
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7284936",
      "source": "psirt@us.ibm.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@us.ibm.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service due to improper handling of XML external entities in RFH2 folder parsing."
    }
  ],
  "lastModified": "2026-09-16T19:24:58.293",
  "sourceIdentifier": "psirt@us.ibm.com"
}