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CVE-2026-11728

Estado: Pendiente de análisisAlta (8.1)—

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 a remote attacker to cause a denial of service or potentially execute arbitrary code in the client due to a heap buffer overflow when receiving messages from a malicious queue manager or through a man-in-the-middle attack.

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.

Vulnerabilidad remota (AV:N, PR:N) en servicio de mensajería IBM MQ. Buffer overflow (CWE-787) permite ejecución de código arbitrario o DoS sin privilegios previos ni interacción del usuario.

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

Privileged Account ManagementFilter Network TrafficVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software Installation

Tecnologías afectadas (1)

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

IBM — MQAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-11728",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-11728",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-15T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "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": "2026-09-15T18:17:12.257",
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7284943",
      "source": "psirt@us.ibm.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@us.ibm.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "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 a remote attacker to cause a denial of service or potentially execute arbitrary code in the client due to a heap buffer overflow when receiving messages from a malicious queue manager or through a man-in-the-middle attack."
    }
  ],
  "lastModified": "2026-09-16T19:21:55.793",
  "sourceIdentifier": "psirt@us.ibm.com"
}