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CVE-2026-12665IBM MQ Buffer Overflow
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.
9.8 CRITICALEPSS 0.31%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1 | HIGH | 3.1ibm (CNA) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-12665
- Status
- Analyzed
- Assigner (CNA)
- ibm
- Published
- Oct 19, 2026
- Last modified
- 2026-10-23 17:21 UTC
- Weaknesses
- CWE-121 · Stack-based Buffer Overflow
Affected Products
As published by the CNA in the CVE record.
IBMMQ Operator18 version ranges
- 3.2.0 through 3.2.29
- 3.3.0 before 3.4.0
- 3.4.1
- 3.5.0
- 3.5.1 through 3.5.3
- 3.6.0 through 3.6.4
- 3.7.0 through 3.7.2
- 3.8.0
- 3.8.1
- 3.9.0
- 3.9.1
- 3.9.2
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 2.0.0 through 2.0.29
IBMMQ Advanced container images71 version ranges
- 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-r2
- 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 through 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 through 9.4.0.25-r3
- 9.4.0.26-r1
- 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 through 9.4.3.1-r3
- 9.4.4.0-r1
- 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 through 10.0.0.0-r4
- 10.0.0.5-r1
- 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-r2