---
id: CVE-2026-17275
title: IBM i is Affected by an Improper Validation Vulnerability
summary: >-
  IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to perform
  unauthorized manipulation of distributed transactions due to improper
  validation of attacker-supplied transaction identifiers.
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-285
vendor: IBM
product: i
affected:
  - i 7.6
  - i 7.5
  - i 7.4
  - i 7.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T19:08:40.482987Z'
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:09:21.358Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-17275'
references:
  - url: 'https://www.ibm.com/support/pages/node/7292222'
tags:
  - cve.org
ingestedAt: '2026-10-16T19:46:24.334Z'
---

## Overview

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to perform unauthorized manipulation of distributed transactions due to improper validation of attacker-supplied transaction identifiers.

## Affected

- `i 7.6`
- `i 7.5`
- `i 7.4`
- `i 7.3`

## Remediation

IBM i Release5770-SS1 
PTF Number(s)PTF Download Link(s)7.6SJ11429
SJ11543 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11429 
 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11543 7.5SJ11430
SJ11545 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11430 
 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11545 7.4SJ11431
SJ11546 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11431 
 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11546 7.3SJ11435 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11435 




IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.