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Back to active CVEs
Medium · CVSS 6.5CVE-2026-14511

IBM MQ Denial of ServiceCVE-2026-14511

Answer in brief

CVE-2026-14511 records a Medium severity (CVSS 6.5) vulnerability in IBM MQ Denial of Service. The current sources do not mark it as known exploited. The current feed maps IBM/MQ (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 19, 2026Updated Oct 19, 2026Source checked Oct 19, 2026First seen by HOL Oct 19, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps IBM/MQ (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
IBM/MQgeneric>=9.4.5.0 <=9.4.5.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for IBM/MQ.
  2. 2Review the reported fix. Source-reported solution: This issue was addressed under known issue DT500555 IBM MQ version 9.4 CD Upgrade to IBM MQ version 10.0.0.0 https://www.ibm.com/support/pages/downloading-ibm-mq-100

Evidence timeline and material changes

  1. Published upstream

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 19, 2026

Sources and claim methodology

  • Source referenceibm.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • aiohttp server lacks an initial request/header timeoutAlso CWE-770
  • AIOHTTP: Connector pool exhaustion via Max-Age overflowAlso CWE-770
  • AIOHTTP: File descriptor exhaustion in multipart requestsAlso CWE-770

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-770
Source
CVE List V5
Source checked
Oct 19, 2026
References
1 linked source
Open source record