CVE-2025-36222Network attack vector

Unauthorized AMQ Streams actions via unauthenticated defaults

Published Sep 11, 2025 · Updated Feb 26, 2026

Insecure defaults in affected IBM Fusion products allow remote attackers to perform unauthorized AMQ Streams actions without authentication. The default AMQ Streams configuration exposes a listener without client authentication and accepts client requests before identity verification. Affected releases are Fusion 2.2.0 through 2.10.1, Fusion HCI 2.2.0 through 2.10.0, and Fusion HCI for watsonx 2.8.2 through 2.10.0; network reachability is required.

CVSS severity8.7
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure defaults in affected IBM Fusion products allow remote attackers to perform unauthorized AMQ Streams actions without authentication. The default AMQ Streams configuration exposes a listener without client authentication and accepts client requests before identity verification. Affected releases are Fusion 2.2.0 through 2.10.1, Fusion HCI 2.2.0 through 2.10.0, and Fusion HCI for watsonx 2.8.2 through 2.10.0; network reachability is required.

The record

CVE
CVE-2025-36222
Published
Sep 11, 2025
Updated
Feb 26, 2026
Vendor
IBM
Product
Fusion HCI
Classifications
CWE-1188, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=2.2.0 <=2.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Fusion HCIversion=2.2.0 <=2.10.0
IBM · Fusion HCI for watsonxversion=2.8.2 <=2.10.0
IBM · Fusionversion=2.2.0 <=2.10.1

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.7IBMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
T1190Exploit Public-Facing Application

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

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Your stack

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