---
id: CVE-2026-18343
title: "IBM i 7.3, 7.4, 7.5, and 7.6\_could allow a local attacker to modify the BOOTP table due to improper authorization."
summary: "IBM i 7.3, 7.4, 7.5, and 7.6\_could allow a local attacker to modify the BOOTP table due to improper authorization."
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-269
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T16:17:14.080'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18343'
references:
  - url: 'https://www.ibm.com/support/pages/node/7290194'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00122
epssPercentile: 0.01801
ingestedAt: '2026-10-13T01:10:59.041Z'
---

## Overview

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.

## Remediation

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