Vulnerability-Lookup

CVE-2026-10747 (GCVE-0-2026-10747)

Vulnerability from cvelistv5 – Published: 2026-09-18 15:55 – Updated: 2026-09-21 12:47

Title

IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing

Summary

IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-19 03:56 UTC

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

ibm CNA under the mitre root

CNA scorecard B 88/100 over 1251 records in the last 180 days details

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7284690	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	MQ Appliance	Affected: 9.4 LTS , ≤ 9.4.0.0 to 9.4.0.25 (custom) Affected: 9.4 CD , ≤ 9.4.1.0 to 9.4.5.2 (custom) Affected: 10.0.0.0 , ≤ 10.0.0.1 only (semver) cpe:2.3:a:ibm:mq_appliance:9.4:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.0:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.0.0:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.1.0:::::::* cpe:2.3:a:ibm:mq_appliance:10.0.0.0:::::::* cpe:2.3:a:ibm:mq_appliance:10.0.0.1:::::::*

Show details on NVD website

JSON

To clipboard

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                "cpe:2.3:a:ibm:mq_appliance:9.4:*:*:*:*:*:*:*",
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            }
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          "title": "IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing"
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        "dateUpdated": "2026-09-21T12:47:23.571Z",
        "state": "PUBLISHED"
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}

FKIE_CVE-2026-10747

Vulnerability from fkie_nvd - Published: 2026-09-18 16:17 - Updated: 2026-09-21 13:17

Severity

10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7284690

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:mq_appliance:9.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq_appliance:9.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq_appliance:9.4.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq_appliance:9.4.1.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq_appliance:10.0.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq_appliance:10.0.0.1:*:*:*:*:*:*:*"
          ],
          "product": "MQ Appliance",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "9.4.0.0 to 9.4.0.25",
              "status": "affected",
              "version": "9.4 LTS",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.4.1.0 to 9.4.5.2",
              "status": "affected",
              "version": "9.4 CD",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "10.0.0.1 only",
              "status": "affected",
              "version": "10.0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication."
    }
  ],
  "id": "CVE-2026-10747",
  "lastModified": "2026-09-21T13:17:07.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-10747",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-19T03:56:46.797549Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-18T16:17:04.413",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "url": "https://www.ibm.com/support/pages/node/7284690"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ],
      "source": "psirt@us.ibm.com",
      "type": "Secondary"
    }
  ]
}

GHSA-XP86-QF4H-97H5

Vulnerability from github – Published: 2026-09-18 18:31 – Updated: 2026-09-18 18:31

Details

IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.

Severity

10.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-10747"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-18T16:17:04Z",
    "severity": "CRITICAL"
  },
  "details": "IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.",
  "id": "GHSA-xp86-qf4h-97h5",
  "modified": "2026-09-18T18:31:40Z",
  "published": "2026-09-18T18:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10747"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7284690"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

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Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-10747 (GCVE-0-2026-10747)

FKIE_CVE-2026-10747

GHSA-XP86-QF4H-97H5

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