---
id: CVE-2026-14991
title: >-
  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
  buffer overflow, caused by improper bounds checking
summary: >-
  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
  buffer overflow, caused by improper bounds checking. A local user could
  overflow the bu…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
vendor: IBM
product: DataPower Gateway 10.6CD
affected:
  - datapower_gateway_10.6cd >= 10.6.1 <= 10.6.6
  - datapower_gateway_10.6.0 >= 10.6.0.0 <= 10.6.0.10
  - datapower_gateway_11.0.0 >= 11.0.0.0 <= 11.0.0.2
  - datapower_gateway_10.5.0 >= 10.5.0.0 <= 10.5.0.22
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:07.553'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-14991'
references:
  - url: 'https://www.ibm.com/support/pages/node/7289775'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-08T15:58:51.793542Z'
ingestedAt: '2026-10-08T14:47:16.342Z'
---

## Overview

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 buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.