CVE-2026-14269
Received Received - Intake

Heap-based Buffer Overflow in IBM DataPower Gateway

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 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. An unauthenticated remote attacker could overflow the buffer and execute arbitrary code on the system.

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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-2026-14269
EUVD
EUVD-2026-95029

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-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

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Executive Summary

This is a heap-based buffer overflow vulnerability in 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 occurs due to improper bounds checking, allowing an unauthenticated remote attacker to overflow the buffer and execute arbitrary code on the affected system.

Detection Guidance

This vulnerability is specific to 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, and 11.0.0.0-11.0.0.2. Detection requires checking the installed version of IBM DataPower Gateway. Use the command 'show version' in the DataPower CLI to verify the version. If your version falls within the affected ranges, the system is vulnerable.

Impact Analysis

An attacker could exploit this to gain control of the IBM DataPower Gateway system, potentially leading to unauthorized access, data breaches, or disruption of services. The high CVSS score (9.8) indicates severe impact, including complete system compromise.

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 it to maintain compliance.

Mitigation Strategies

Apply the latest patches or updates from IBM for 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. If patches are not available, consider isolating affected systems from untrusted networks and disabling unnecessary services.

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