CVE-2025-23225Network attack vector

Authenticated service interruption via invalid queue headers

Published Feb 28, 2025 · Updated Feb 28, 2025

Denial of service in IBM MQ 9.3 LTS, 9.3 CD, 9.4 LTS, and 9.4 CD allows remote authenticated users to interrupt queue service. IBM states that the Server component mishandles invalid headers sent to a queue but has not disclosed the specific parser or failure mode. Authenticated network access able to submit malformed queue input is required; confidentiality and integrity impacts are not reported.

CVSS severity6.5
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in IBM MQ 9.3 LTS, 9.3 CD, 9.4 LTS, and 9.4 CD allows remote authenticated users to interrupt queue service. IBM states that the Server component mishandles invalid headers sent to a queue but has not disclosed the specific parser or failure mode. Authenticated network access able to submit malformed queue input is required; confidentiality and integrity impacts are not reported.

The record

CVE
CVE-2025-23225
Published
Feb 28, 2025
Updated
Feb 28, 2025
Vendor
IBM
Product
IBM MQ
Classifications
CWE-230, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.3 LTS, 9.3 CD, 9.4 LTS, 9.4 CD

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM MQversion=9.3 LTS, 9.3 CD, 9.4 LTS, 9.4 CD

Published CVSS scores

6.5IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-230Improper Handling of Missing Values
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo