CVE-2025-36128Network attack vector

Unauthenticated service interruption via untimed HTTP reads

Published Oct 16, 2025 · Updated Oct 16, 2025

Denial of service in the REST API and Console in IBM MQ 9.1, 9.2, 9.3, and 9.4 allows remote attackers to interrupt service. The bundled WebSphere Liberty profile fails to enforce a timeout on each read operation, so incomplete HTTP requests retain connections and exhaust server capacity. No authentication or user interaction is required; repeated network connections can prevent legitimate use of the REST API and Console.

CVSS severity7.5
High
EPSS probability0.54%
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 the REST API and Console in IBM MQ 9.1, 9.2, 9.3, and 9.4 allows remote attackers to interrupt service. The bundled WebSphere Liberty profile fails to enforce a timeout on each read operation, so incomplete HTTP requests retain connections and exhaust server capacity. No authentication or user interaction is required; repeated network connections can prevent legitimate use of the REST API and Console.

The record

CVE
CVE-2025-36128
Published
Oct 16, 2025
Updated
Oct 16, 2025
Vendor
IBM
Product
IBM MQ
Classifications
CWE-772, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 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=9.1
  2. Affected versionversion=9.2
  3. Affected versionversion=9.3
  4. Affected versionversion=9.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM MQversion=9.1; version=9.2; version=9.3; version=9.4

Published CVSS scores

7.5IBMCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
T1499.003Application Exhaustion Flood

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