CVE-2026-14269: IBM DataPower Gateway Buffer Overflow

Q: Which deployments are affected?

Affected versions are IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2.

Q: Does exploitation require authentication or user interaction?

No. The vulnerability can be exploited remotely by an unauthenticated attacker, and no user interaction is indicated.

Q: What could a successful attacker do?

An attacker could trigger a heap-based buffer overflow and execute arbitrary code on the affected system.

Published Sep 28, 2026

Updated

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.

Other sources

IBM DataPower Gateway 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.

— IBM

Affected Software

4 affected components

IBM DataPower Gateway 10.6CD<=10.6.1 - 10.6.6

IBM DataPower Gateway 10.6.0<=10.6.0.0 - 10.6.0.10

IBM DataPower Gateway 11.0.0<=11.0.0.0 - 11.0.0.2

IBM DataPower Gateway 10.5.0<=10.5.0.0 - 10.5.0.22

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade IBM DataPower Gateway 10.6CD to a version that resolves this vulnerability.
Fixed in 11.0.0.3
Upgrade
Upgrade IBM DataPower Gateway 10.6.0 to a version that resolves this vulnerability.
Fixed in 10.6.0.11
Upgrade
Upgrade IBM DataPower Gateway 11.0.0 to a version that resolves this vulnerability.
Fixed in 11.0.0.3
Upgrade
Upgrade IBM DataPower Gateway 10.5.0 to a version that resolves this vulnerability.
Fixed in 10.5.0.23

Event History

Sep 28, 2026

CVE Published

via IBM·12:00 AM

Data Sourced

via IBM·12:00 AM

DescriptionAffected Software

Oct 8, 2026

CVE Published

via MITRE·02:30 PM

Data Sourced

via MITRE·02:30 PM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·03:17 PM

DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

IBM-7289775

Frequently Asked Questions

Which deployments are affected?

Affected versions are IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2.

Does exploitation require authentication or user interaction?

No. The vulnerability can be exploited remotely by an unauthenticated attacker, and no user interaction is indicated.

What could a successful attacker do?

An attacker could trigger a heap-based buffer overflow and execute arbitrary code on the affected system.

CVE-2026-14269: IBM DataPower Gateway Buffer Overflow

Other sources

Affected Software

Remediation

Event History

Parent advisories

Frequently Asked Questions

Which deployments are affected?

Does exploitation require authentication or user interaction?

What could a successful attacker do?

Company

Resources

Contact

Frequently Asked Questions

Which deployments are affected?

Does exploitation require authentication or user interaction?

What could a successful attacker do?