CVE-2026-11376

Full vulnerability record from the local CVENow database.

Description

IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow when processing subscription requests with crafted buffer size values.

Severity

HIGH

CVSS score

8.8 (v3.1)

Vulnerability status

Undergoing Analysis

Source identifier

[email protected]

Published

2026-11-04 21:17:56.403000

Last modified

2026-11-04 21:17:56.530000

View original CVE JSON

{
  "id": "CVE-2026-11376",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-04T21:17:56.403",
  "lastModified": "2026-11-04T21:17:56.530",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow when processing subscription requests with crafted buffer size values."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "MQ",
          "cpes": [
            "cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "9.2.0.0",
              "lessThanOrEqual": "9.2.0.44",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.3.0.0",
              "lessThanOrEqual": "9.3.0.42",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.4.0.0",
              "lessThanOrEqual": "9.4.0.26",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.4.0.0",
              "lessThanOrEqual": "9.4.5.1",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.0.0.0",
              "lessThanOrEqual": "10.0.0.5",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7294498",
      "source": "[email protected]"
    }
  ]
}