---
id: CVE-2026-18069
title: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to obtain ownership
  of arbitrary file system objects due to a time-of-check to time-of-use
  (TOCTOU) race condition.
summary: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to obtain ownership
  of arbitrary file system objects due to a time-of-check to time-of-use
  (TOCTOU) race condition.
severity: medium
cvss: 6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L'
cwe:
  - CWE-367
vendor: IBM
product: i
affected:
  - i 7.6
  - i 7.5
  - i 7.4
  - i 7.3
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:24:44.153'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18069'
references:
  - url: 'https://www.ibm.com/support/pages/node/7287408'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00134
epssPercentile: 0.02385
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T17:24:45.467903Z'
ingestedAt: '2026-09-14T21:15:17.457Z'
---

## Overview

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to obtain ownership of arbitrary file system objects due to a time-of-check to time-of-use (TOCTOU) race condition.

## Remediation

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