{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-14511", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-07-02T19:15:13.160Z", "datePublished": "2026-10-19T16:43:22.662Z", "dateUpdated": "2026-10-19T16:43:22.662Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-10-19T16:43:22.662Z"}, "title": "IBM MQ Denial of Service", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-770", "description": "CWE-770 Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "MQ", "versions": [{"status": "affected", "version": "9.4.5.0", "lessThanOrEqual": "9.4.5.1", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:mq:9.4.5.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM MQ 9.4.5.0 through 9.4.5.1 could allow an authenticated user to cause a denial of service by sending a specially crafted message that crashes consuming applications.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM MQ 9.4.5.0 through 9.4.5.1 could allow an authenticated user to cause a denial of service by sending a specially crafted message that crashes consuming applications.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7290859", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}}], "solutions": [{"lang": "en", "value": "This issue was addressed under known issue DT500555\n\n\n\nIBM MQ version 9.4 CD\n\n\n\n Upgrade to IBM MQ version 10.0.0.0 https://www.ibm.com/support/pages/downloading-ibm-mq-100", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>This issue was addressed under known issue DT500555</div><div><p>IBM MQ version 9.4 CD</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-100\" rel=\"noopener noreferrer nofollow\">Upgrade to IBM MQ version 10.0.0.0</a></p></div>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ibm:mq:9.4.5.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*"], "product": "MQ", "vendor": "IBM", "versions": [{"lessThanOrEqual": "9.4.5.1", "status": "affected", "version": "9.4.5.0", "versionType": "semver"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM MQ 9.4.5.0 through 9.4.5.1 could allow an authenticated user to cause a denial of service by sending a specially crafted message that crashes consuming applications."}], "id": "CVE-2026-14511", "lastModified": "2026-10-19T17:17:20.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-10-19T17:17:20.110", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7290859"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.4.5.0,9.4.5.1]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MQ", "source": "cna", "vendor": "IBM"}, "product": "mq", "vendor": "ibm"}], "created": "2026-10-19T19:45:02.934257+00:00", "updated": "2026-10-19T20:30:03.285162+00:00", "vendors": ["ibm", "ibm$PRODUCT$mq"]}