CVE-2026-11536
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Remote Code Execution in IBM WebSphere Application Server

Publication date: 2026-07-30

Last updated on: 2026-07-31

Assigner: IBM Corporation

Description
IBM WebSphere Application Server 9.0, and 8.5 is affected by a remote code execution vulnerability in the SOAP/JMX connector.

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Meta Information

Published
2026-07-30
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
CVE-2026-11536
EUVD
EUVD-2026-51274

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm websphere_application_server 9.0
ibm websphere_application_server 8.5

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

IBM WebSphere Application Server 9.0 and 8.5 has a remote code execution vulnerability in the SOAP/JMX connector. This allows an attacker to execute arbitrary code on the affected system remotely.

Detection Guidance

Detecting this vulnerability requires checking for IBM WebSphere Application Server versions 9.0 or 8.5 with exposed SOAP/JMX connectors. Inspect running services and open ports (typically 8880, 9402, 9633) using commands like netstat -tuln or ss -tuln. Verify server versions via IBM WebSphere administrative console or command-line tools like versionInfo.sh.

Impact Analysis

This vulnerability can lead to unauthorized remote access, data breaches, system compromise, and potential full control over the affected WebSphere server. Attackers could steal sensitive data or disrupt services.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, and other regulations due to unauthorized data access or exposure. Organizations may face legal penalties and reputational damage if exploited.

Mitigation Strategies

Disable the SOAP/JMX connector if not required. Apply the latest IBM WebSphere Application Server patches immediately. Restrict network access to the SOAP/JMX ports. Monitor for unusual activity or unauthorized access attempts.

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