CVE-2026-12118

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Remote Code Execution in IBM webMethods Integration

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: IBM Corporation

Description

IBM webMethods Integration (on prem) 10.15, 10.11 could allow an unauthenticated remote attacker to execute arbitrary code on the system due to the deserialization of untrusted data.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-30

Last Modified

2026-07-30

Generated

2026-07-31

AI Q&A

2026-07-31

EPSS Evaluated

N/A

NVD

CVE-2026-12118

EUVD

EUVD-2026-51200

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	webmethods_integration	10.15
ibm	webmethods_integration	10.11

Helpful Resources

Exploitability

CWE

KEV

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

Attack-Flow Graph

Executive Summary

This vulnerability is a deserialization flaw in IBM webMethods Integration versions 10.15 and 10.11. An unauthenticated remote attacker can exploit it to execute arbitrary code on the affected system by sending specially crafted data.

Impact Analysis

If exploited, this vulnerability allows attackers to take full control of the system, including running malicious code, stealing data, or disrupting services. It requires no authentication, making it highly dangerous for unpatched systems.

Compliance Impact

This vulnerability allows unauthenticated remote attackers to execute arbitrary code on the system, which could lead to unauthorized access, data breaches, or data exfiltration. Such incidents may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security) by exposing sensitive information.

Mitigation Strategies

Apply the latest security patches or updates from IBM for webMethods Integration versions 10.15 and 10.11 to address the deserialization flaw. Disable unnecessary services or network exposure to reduce attack surface. Monitor IBM's security advisories for additional mitigation guidance.

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