CVE-2026-12727
Awaiting Analysis Awaiting Analysis - Queue

Authenticated Off-by-One Buffer Overflow in IBM MQ

Publication date: 2026-10-19

Last updated on: 2026-10-23

Assigner: IBM Corporation

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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-19
Last Modified
2026-10-23
Generated
2026-11-08
AI Q&A
2026-10-19
EPSS Evaluated
2026-11-07
NVD
CVE-2026-12727
EUVD
EUVD-2026-104463

Affected Vendors & Products

Showing 109 associated CPEs
Vendor Product Version / Range
ibm mq_operator From 2.0.0 (inc) to 2.0.29 (inc)
ibm mq_operator 3.3.0
ibm mq_operator 3.4.0
ibm mq_operator 3.4.1
ibm mq_operator 3.5.0
ibm mq_operator 3.5.1
ibm supplied_mq_advanced_container_images 9.4.1.0
ibm supplied_mq_advanced_container_images 9.4.1.0
ibm supplied_mq_advanced_container_images 9.4.1.1
ibm supplied_mq_advanced_container_images 9.4.2.0
ibm supplied_mq_advanced_container_images 9.4.2.0
ibm supplied_mq_advanced_container_images 9.4.2.1
ibm supplied_mq_advanced_container_images 9.4.2.1
ibm supplied_mq_advanced_container_images 9.4.3.0
ibm mq_operator From 3.2.0 (inc) to 3.2.29 (inc)
ibm mq_operator 3.5.2
ibm mq_operator 3.5.3
ibm mq_operator 3.6.0
ibm mq_operator 3.6.1
ibm mq_operator 3.6.2
ibm mq_operator 3.6.3
ibm mq_operator 3.6.4
ibm mq_operator 3.7.0
ibm mq_operator 3.7.1
ibm mq_operator 3.7.2
ibm mq_operator 3.8.0
ibm mq_operator 3.8.1
ibm mq_operator 3.9.0
ibm mq_operator 3.9.1
ibm mq_operator 3.9.2
ibm mq_operator 4.0.0
ibm mq_operator 4.0.1
ibm mq_operator 4.0.2
ibm mq_operator 4.0.3
ibm mq_operator 4.0.4
ibm supplied_mq_advanced_container_images 10.0.0.0
ibm supplied_mq_advanced_container_images 10.0.0.0
ibm supplied_mq_advanced_container_images 10.0.0.0
ibm supplied_mq_advanced_container_images 10.0.0.0
ibm supplied_mq_advanced_container_images 10.0.0.5
ibm supplied_mq_advanced_container_images 9.4.3.0
ibm supplied_mq_advanced_container_images 9.4.3.1
ibm supplied_mq_advanced_container_images 9.4.3.1
ibm supplied_mq_advanced_container_images 9.4.3.1
ibm supplied_mq_advanced_container_images 9.4.4.0
ibm supplied_mq_advanced_container_images 9.4.4.0
ibm supplied_mq_advanced_container_images 9.4.4.0
ibm supplied_mq_advanced_container_images 9.4.4.0
ibm supplied_mq_advanced_container_images 9.4.4.1
ibm supplied_mq_advanced_container_images 9.4.5.0
ibm supplied_mq_advanced_container_images 9.4.5.0
ibm supplied_mq_advanced_container_images 9.4.5.1
ibm supplied_mq_advanced_container_images 9.3.0.0
ibm supplied_mq_advanced_container_images 9.3.0.0
ibm supplied_mq_advanced_container_images 9.3.0.0
ibm supplied_mq_advanced_container_images 9.3.0.1
ibm supplied_mq_advanced_container_images 9.3.0.1
ibm supplied_mq_advanced_container_images 9.3.0.1
ibm supplied_mq_advanced_container_images 9.3.0.1
ibm supplied_mq_advanced_container_images 9.3.0.10
ibm supplied_mq_advanced_container_images 9.3.0.10
ibm supplied_mq_advanced_container_images 9.3.0.11
ibm supplied_mq_advanced_container_images 9.3.0.11
ibm supplied_mq_advanced_container_images 9.3.0.15
ibm supplied_mq_advanced_container_images 9.3.0.16
ibm supplied_mq_advanced_container_images 9.3.0.16
ibm supplied_mq_advanced_container_images 9.3.0.17
ibm supplied_mq_advanced_container_images 9.3.0.17
ibm supplied_mq_advanced_container_images 9.3.0.17
ibm supplied_mq_advanced_container_images 9.3.0.20
ibm supplied_mq_advanced_container_images 9.3.0.20
ibm supplied_mq_advanced_container_images 9.3.0.3
ibm supplied_mq_advanced_container_images 9.3.0.4
ibm supplied_mq_advanced_container_images 9.3.0.4
ibm supplied_mq_advanced_container_images 9.3.0.5
ibm supplied_mq_advanced_container_images 9.3.0.5
ibm supplied_mq_advanced_container_images 9.3.0.5
ibm supplied_mq_advanced_container_images 9.3.0.6
ibm supplied_mq_advanced_container_images 9.3.0.21
ibm supplied_mq_advanced_container_images 9.3.0.21
ibm supplied_mq_advanced_container_images 9.3.0.21
ibm supplied_mq_advanced_container_images 9.3.0.25
ibm supplied_mq_advanced_container_images 9.4.0.0
ibm supplied_mq_advanced_container_images 9.4.0.0
ibm supplied_mq_advanced_container_images 9.4.0.0
ibm supplied_mq_advanced_container_images 9.4.0.5
ibm supplied_mq_advanced_container_images 9.4.0.5
ibm supplied_mq_advanced_container_images 9.4.0.10
ibm supplied_mq_advanced_container_images 9.4.0.10
ibm supplied_mq_advanced_container_images 9.4.0.11
ibm supplied_mq_advanced_container_images 9.4.0.11
ibm supplied_mq_advanced_container_images 9.4.0.6
ibm supplied_mq_advanced_container_images 9.4.0.6
ibm supplied_mq_advanced_container_images 9.4.0.7
ibm supplied_mq_advanced_container_images 9.4.0.11
ibm supplied_mq_advanced_container_images 9.4.0.12
ibm supplied_mq_advanced_container_images 9.4.0.12
ibm supplied_mq_advanced_container_images 9.4.0.15
ibm supplied_mq_advanced_container_images 9.4.0.15
ibm supplied_mq_advanced_container_images 9.4.0.16
ibm supplied_mq_advanced_container_images 9.4.0.16
ibm supplied_mq_advanced_container_images 9.4.0.17
ibm supplied_mq_advanced_container_images 9.4.0.17
ibm supplied_mq_advanced_container_images 9.4.0.20
ibm supplied_mq_advanced_container_images 9.4.0.21
ibm supplied_mq_advanced_container_images 9.4.0.21
ibm supplied_mq_advanced_container_images 9.4.0.25
ibm supplied_mq_advanced_container_images 9.4.0.25
ibm supplied_mq_advanced_container_images 9.4.0.26

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-193 A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an off-by-one buffer overflow in IBM MQ that occurs when processing specially crafted object names. An authenticated attacker could exploit this to cause process instability.

Detection Guidance

This vulnerability involves an off-by-one buffer overflow in IBM MQ when processing crafted object names. Detection requires monitoring for process instability or crashes in IBM MQ services after handling object names. Check MQ logs for segmentation faults or abnormal terminations. Use system monitoring tools like 'dmesg' or 'journalctl' to identify crashes. Inspect MQ error logs for entries related to buffer overflows or invalid object names.

Impact Analysis

An attacker could disrupt IBM MQ services, leading to potential downtime or instability in messaging systems. This may affect data transmission and application performance.

Compliance Impact

The vulnerability could lead to process instability in IBM MQ, potentially causing service disruptions or data corruption. This may impact compliance with GDPR by risking data integrity and availability, and with HIPAA by potentially disrupting protected health information processing.

Mitigation Strategies

Apply the latest IBM MQ security patches or updates as soon as they are available to address the buffer overflow issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-12727. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...