CVE-2026-16340
Received Received - Intake

IBM DataPower Gateway Remote Code Execution via Out-of-Bounds Write

Publication date: 2026-10-08

Last updated on: 2026-10-08

Assigner: IBM Corporation

Description
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to execute arbitrary code due to an out-of-bounds write in the RFC2047 encoded-word parser.

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Meta Information

Published
2026-10-08
Last Modified
2026-10-08
Generated
2026-10-08
AI Q&A
2026-10-08
EPSS Evaluated
N/A
NVD
CVE-2026-16340
EUVD
EUVD-2026-94887

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
IBM DataPower Gateway 10.6CD 10.6.1
IBM DataPower Gateway 10.6.0 10.6.0.0
IBM DataPower Gateway 11.0.0 11.0.0.0
IBM DataPower Gateway 10.5.0 10.5.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

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Executive Summary

This vulnerability is an out-of-bounds write flaw in the RFC2047 encoded-word parser of IBM DataPower Gateway versions 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2. It allows a remote attacker to execute arbitrary code by exploiting improper memory handling during parsing.

Detection Guidance

Detection requires checking for IBM DataPower Gateway versions 10.5.0.0-10.5.0.22, 10.6.1-10.6.6, 10.6.0.0-10.6.0.10, or 11.0.0.0-11.0.0.2. Use version check commands like 'show version' in DataPower CLI or inspect installed packages via system tools.

Impact Analysis

This vulnerability could allow an attacker to execute arbitrary code on affected IBM DataPower Gateway systems. This may lead to unauthorized access, data breaches, service disruption, or complete system compromise if exploited successfully.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected versions must address this flaw to maintain regulatory compliance and protect sensitive data.

Mitigation Strategies

Upgrade IBM DataPower Gateway to a version beyond the affected range (10.5.0.0-10.5.0.22, 10.6.1-10.6.6, 10.6.0.0-10.6.0.10, 11.0.0.0-11.0.0.2). Apply the latest patches from IBM to address the out-of-bounds write vulnerability in the RFC2047 encoded-word parser.

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