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Mq Appliance CVE-2021-38967

MEDIUM
Code Injection (CWE-94)
2021-11-30 psirt@us.ibm.com
6.7
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Code injection prevention, sandbox exec
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.7 (MEDIUM). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

A local attacker with access to the system could inject and execute arbitrary code within the application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAI

IBM MQ Appliance 9.2 CD and 9.2 LTS could allow a local privileged user to inject and execute malicious code. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. This Code Injection vulnerability could allow attackers to inject and execute arbitrary code within the application.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. IBM MQ Appliance 9.2 CD and 9.2 LTS could allow a local privileged user to inject and execute malicious code. IBM X-Force ID: 212441. Affected products include: Ibm Mq Appliance.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

IBM MQ Appliance 9.2 CD and 9.2 LTS could allow a local privileged user to inject and execute malicious code. IBM X-Force ID: 212441.

Threat Intelligence Overview

EPSS Score
0.3%
Top 83% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:ibm:mq_appliance:9.2.0.0:*:*:*:continuous_delivery:*:*:*
cpe:2.3:a:ibm:mq_appliance:9.2.0.0:*:*:*:lts:*:*:*
CVE-2026-10747 CRITICAL
10.0 Sep 18

A pre-authentication heap buffer overflow in IBM MQ Appliance protocol message processing lets a remote, unauthenticated

CVE-2017-1318 HIGH
8.8 Jul 18

IBM MQ Appliance 8.0 and 9.0 could allow an authenticated messaging administrator to execute arbitrary commands on the s

CVE-2025-0975 HIGH
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CVE-2023-46176 HIGH
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IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.6, 7.6.0.0 through 7.6.0.15 and IBM MQ Appliance 8.0.0.0 through 8.0.0

CVE-2024-25048 HIGH
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IBM MQ Appliance 9.3 CD and LTS are vulnerable to a heap-based buffer overflow, caused by improper bounds checking. Rate

CVE-2024-25016 HIGH
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IBM MQ and IBM MQ Appliance 9.0, 9.1, 9.2, 9.3 LTS and 9.3 CD could allow a remote unauthenticated attacker to cause a d

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IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.3 CD and IBM MQ Appliance 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.2 LTS

CVE-2020-4375 HIGH
7.5 Jul 28

IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS could allow an attacker to cause a denial of s

CVE-2019-4055 HIGH
7.5 Apr 19

IBM MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, and 9.1.0.0 through 9.1.1 is vulnerable to a denial of service

CVE-2025-23225 MEDIUM
6.5 Feb 28

IBM MQ 9.3 LTS, 9.3 CD, 9.4 LTS, and 9.4 CD could allow an authenticated user to cause a denial of service due to the im

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