CVE-2026-12727: CWE-193 Off-by-one Error in IBM MQ Operator
Description
IBM MQ could allow an authenticated attacker to cause potential process instability due to an off-by-one buffer overflow when processing specially crafted object names.
CVSS v3.1
Score 4.3medium
Affected software
IBM
MQ Operator
IBM
MQ Advanced container images
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM MQ Operator contains an off-by-one error (CWE-193) that leads to a buffer overflow when processing specially crafted object names. This vulnerability could cause potential process instability if exploited by an authenticated attacker. The CVSS 3.1 base score is 4.3, reflecting a medium severity with network attack vector, low attack complexity, required privileges, no user interaction, unchanged scope, and impact limited to availability (no confidentiality or integrity impact). The affected versions span multiple releases from 2.0.0 through 4.0.4 and various 9.x and 10.x releases as explicitly enumerated.
Potential Impact
An authenticated attacker could exploit this off-by-one buffer overflow to cause process instability, potentially leading to denial of service conditions. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or official fixes are provided, users should monitor IBM advisories for updates. Until a fix is available, limit access to the IBM MQ Operator to trusted authenticated users to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-19T15:18:30.194Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad64a152cdf04f6566e6f48
Added to database: 10/19/2026, 16:49:25 UTC
Last enriched: 10/19/2026, 17:04:38 UTC
Last updated: 10/19/2026, 17:34:11 UTC
Views: 3
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