CVE-2026-10027: CWE-787 Out-of-bounds Write in IBM MQ
IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.
AI Analysis
Technical Summary
IBM MQ contains a buffer overflow vulnerability (CWE-787) triggered by processing malformed compressed data on channels configured with compression enabled. This out-of-bounds write can be exploited remotely without privileges or user interaction, potentially leading to denial of service or arbitrary code execution. The vulnerability affects specific IBM MQ versions 9.1.0.0, 9.2.0.0, 9.3.0.0, 9.4.0.0, and 10.0.0.0. The CVSS 3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow a remote attacker to cause a denial of service or execute arbitrary code on affected IBM MQ installations. This impacts system availability and could compromise system integrity and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling compression on MQ channels as a potential workaround if feasible.
CVE-2026-10027: CWE-787 Out-of-bounds Write in IBM MQ
Description
IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.
CVSS v3.1
Score 8.1high
Affected software
IBM
MQ
pkg:maven/com.ibm.mq/mqcpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM MQ contains a buffer overflow vulnerability (CWE-787) triggered by processing malformed compressed data on channels configured with compression enabled. This out-of-bounds write can be exploited remotely without privileges or user interaction, potentially leading to denial of service or arbitrary code execution. The vulnerability affects specific IBM MQ versions 9.1.0.0, 9.2.0.0, 9.3.0.0, 9.4.0.0, and 10.0.0.0. The CVSS 3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow a remote attacker to cause a denial of service or execute arbitrary code on affected IBM MQ installations. This impacts system availability and could compromise system integrity and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling compression on MQ channels as a potential workaround if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-05-28T18:23:10.142Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aad5cfc55bf5e2cf53217f0
Added to database: 09/18/2026, 15:47:08 UTC
Last enriched: 09/18/2026, 16:01:42 UTC
Last updated: 09/19/2026, 01:36:59 UTC
Views: 8
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