Riskcovery

CVE-2026-12665

IBM MQ Buffer Overflow

State
Published
Severity
8.1 High
Published
Oct 19, 2026
Updated
Oct 20, 2026
Reserved
Jun 18, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hibm

Weaknesses

  • CWE-121 Stack-based Buffer Overflow

Affected Products

ProductVersions
MQ OperatorIBM
  • 3.2.0 through 3.2.29Affected
  • 3.3.0 to before 3.4.0Affected
  • 3.4.1Affected
  • 3.5.0Affected
  • 3.5.1 through 3.5.3Affected
  • 3.6.0 through 3.6.4Affected
  • 3.7.0 through 3.7.2Affected
  • 3.8.0Affected
  • 3.8.1Affected
  • 3.9.0Affected
  • 3.9.1Affected
  • 3.9.2Affected
  • 4.0.0Affected
  • 4.0.1Affected
  • 4.0.2Affected
  • 4.0.3Affected
  • 4.0.4Affected
  • 2.0.0 through 2.0.29Affected
MQ Advanced container imagesIBM
  • 9.4.0.6-r1 through r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2Affected
  • 9.4.0.6-r2Affected
  • 9.4.0.7-r1Affected
  • 9.4.0.10-r1Affected
  • 9.4.0.10-r2Affected
  • 9.4.0.11-r1Affected
  • 9.4.0.11-r2Affected
  • 9.4.0.11-r3Affected
  • 9.4.0.12-r1Affected
  • 9.4.0.15-r1 through 9.4.0.15-r4Affected
  • 9.4.0.16-r1Affected
  • 9.4.0.16-r2Affected
  • 9.4.0.17-r1Affected
  • 9.4.0.17-r2Affected
  • 9.4.0.20-r1Affected
  • 9.4.0.21-r1Affected
  • 9.4.0.21-r2Affected
  • 9.4.0.25-r1 through 9.4.0.25-r3Affected
  • 9.4.0.26-r1Affected
  • 9.4.1.0-r1Affected
  • 9.4.1.0-r2Affected
  • 9.4.1.1-r1Affected
  • 9.4.2.0-r1Affected
  • 9.4.2.0-r2Affected
  • 9.4.2.1-r1Affected
  • and 46 more versions

References

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