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CVE-2026-12665

9.8 critical SSVC exploitation: none Analyzed
NVD · CVE.org

IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 10

  1. Cpes+109 CPE criteria (now 109)NVD modified 2026-10-23 17:21
  2. StatusPublished → AnalyzedNVD modified 2026-10-23 17:21
  3. CVSS8.1 (v3.1, CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) → 9.8 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)NVD modified 2026-10-23 17:21
  4. StatusAwaiting Analysis → PublishedNVD modified 2026-10-20 12:58
  5. StatusPublished → Awaiting AnalysisNVD modified 2026-10-20 13:16
  6. StatusAwaiting Analysis → PublishedNVD modified 2026-10-20 03:55
  7. StatusPublished → Awaiting AnalysisNVD modified 2026-10-20 04:16
  8. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 16:40
  9. StatusReceived → Awaiting AnalysisNVD modified 2026-10-19 20:55
  10. First seenCVSS 8.1NVD modified 2026-10-19 17:17

Affected (CPE criteria) 109

  • cpe:2.3:a:ibm:mq_operator:*:*:*:*:lts:*:*:*
  • cpe:2.3:a:ibm:mq_operator:*:*:*:*:sc2:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.3.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.4.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.4.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.5.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.5.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.5.2:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.5.3:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.6.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.6.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.6.2:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.6.3:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.6.4:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.7.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.7.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.7.2:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.8.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.8.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.9.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.9.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:3.9.2:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:4.0.0:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:4.0.1:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:4.0.2:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:4.0.3:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:mq_operator:4.0.4:*:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.1.0:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.1.0:r2:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.1.1:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.0:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.0:r2:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.1:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.1:r2:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.0:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.0:r2:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.1:r1:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.1:r2:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.1:r3:*:*:cd:*:*:*
  • cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.4.0:r1:*:*:cd:*:*:*
  • and 69 more

References 1