Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

CVE-2026-11378

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
18/09/2026
Last modified:
23/09/2026

Description

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* 9.1.0.0 (including) 9.1.0.37 (including)
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* 9.2.0.0 (including) 9.2.0.43 (including)
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* 9.3.0.0 (including) 9.3.0.41 (including)
cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* 9.3.0.0 (including) 9.3.5.1 (including)
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* 9.4.0.0 (including) 9.4.0.25 (including)
cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* 9.4.0.0 (including) 9.4.5.1 (including)
cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:continuous_delivery:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools