CVE-2026-11726: CWE-125 Out-of-bounds Read in IBM MQ for HPE NonStop
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header offset values.
AI Analysis
Technical Summary
IBM MQ for HPE NonStop versions 8.1.0 through 8.1.0.40 contain an out-of-bounds read vulnerability (CWE-125) caused by improper validation of message header offset values. This flaw allows an authenticated attacker to read memory outside the intended buffer boundaries, potentially exposing sensitive information or triggering a denial of service condition. The vulnerability has a CVSS 3.1 base score of 8.1, reflecting high impact on confidentiality and availability with low attack complexity and requiring privileges but no user interaction.
Potential Impact
Successful exploitation can lead to disclosure of sensitive information from memory or cause denial of service in the affected IBM MQ for HPE NonStop service. The attacker must be authenticated to exploit this vulnerability. The integrity of the system is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict authenticated access to trusted users only and monitor for unusual activity related to message header processing.
CVE-2026-11726: CWE-125 Out-of-bounds Read in IBM MQ for HPE NonStop
Description
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header offset values.
CVSS v3.1
Score 8.1high
Affected software
IBM
MQ for HPE NonStop
pkg:maven/com.ibm/mq-for-hpe-nonstopcpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0.40:*:*:*:*:*:*:*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 for HPE NonStop versions 8.1.0 through 8.1.0.40 contain an out-of-bounds read vulnerability (CWE-125) caused by improper validation of message header offset values. This flaw allows an authenticated attacker to read memory outside the intended buffer boundaries, potentially exposing sensitive information or triggering a denial of service condition. The vulnerability has a CVSS 3.1 base score of 8.1, reflecting high impact on confidentiality and availability with low attack complexity and requiring privileges but no user interaction.
Potential Impact
Successful exploitation can lead to disclosure of sensitive information from memory or cause denial of service in the affected IBM MQ for HPE NonStop service. The attacker must be authenticated to exploit this vulnerability. The integrity of the system is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict authenticated access to trusted users only and monitor for unusual activity related to message header processing.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-09T02:23:37.020Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aad91c955bf5e2cf5719176
Added to database: 09/18/2026, 19:32:25 UTC
Last enriched: 09/18/2026, 19:46:47 UTC
Last updated: 09/19/2026, 01:27:03 UTC
Views: 6
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