9.8
CRITICAL CVSS 3.1
CVE-2026-10027
IBM MQ queue manager is vulnerable to unauthenticated remote code execution
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.

INFO

Published Date :

Sept. 18, 2026, 4:17 p.m.

Last Modified :

Sept. 23, 2026, 6:32 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-10027 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ibm mq
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 9a959283-ebb5-44b6-b705-dcc2bbced522
CVSS 3.1 HIGH MITRE-CVE
CVSS 3.1 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
Disable compression for channels until vendor patches are available.
  • Disable channel compression.
  • Update IBM MQ to the latest version.
  • Monitor for security advisories.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-10027.

URL Resource
https://www.ibm.com/support/pages/node/7284893 Patch Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-10027 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-10027 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-10027 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-10027 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Sep. 23, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration OR *cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* versions from (including) 9.3.0.0 up to (including) 9.3.5.1 *cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* versions from (including) 9.1.0.0 up to (including) 9.1.0.37 *cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* versions from (including) 9.2.0.0 up to (including) 9.2.0.43 *cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* versions from (including) 9.3.0.0 up to (including) 9.3.0.41 *cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* versions from (including) 9.4.0.0 up to (including) 9.4.0.25 *cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* versions from (including) 9.4.0.0 up to (including) 9.4.5.1 *cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:continuous_delivery:*:*:*
    Added Reference Type IBM Corporation: https://www.ibm.com/support/pages/node/7284893 Types: Patch, Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 21, 2026

    Action Type Old Value New Value
    Changed SSVC {'id': 'CVE-2026-10027', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-18T00:00:00+00:00'} {'id': 'CVE-2026-10027', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-19T03:56:43.357125Z'}
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 19, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-10027', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-18T00:00:00+00:00'}
  • New CVE Received by [email protected]

    Sep. 18, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/10xxx/CVE-2026-10027.json">CVE-2026-10027</a>
    Added Reference https://www.ibm.com/support/pages/node/7284893
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.