---
id: CVE-2026-16865
title: >-
  IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to
  execute arbitrary code due to command injection.
summary: >-
  IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to
  execute arbitrary code due to command injection.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: ibm
product: vios
affected:
  - 'vios >= 4.1.0, < 4.1.0.50'
  - 'vios >= 4.1.1.0, < 4.1.1.30'
  - 'vios >= 4.1.2.0, < 4.1.2.20'
  - 'aix >= 7.2.5, <= 7.2.5.212'
  - 'aix >= 7.3.2, <= 7.3.2.5'
  - 'aix >= 7.3.3, <= 7.3.3.2'
  - 'aix >= 7.3.4, <= 7.3.4.1'
patched:
  - vios 4.1.2.20
published: '2026-08-19'
updated: '2026-08-22'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16865'
references:
  - url: 'https://www.ibm.com/support/pages/node/7283858'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00717
epssPercentile: 0.51912
ingestedAt: '2026-08-23T02:40:57.608Z'
---

## Overview

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to command injection.

## Affected

- `vios >= 4.1.0, < 4.1.0.50`
- `vios >= 4.1.1.0, < 4.1.1.30`
- `vios >= 4.1.2.0, < 4.1.2.20`
- `aix >= 7.2.5, <= 7.2.5.212`
- `aix >= 7.3.2, <= 7.3.2.5`
- `aix >= 7.3.3, <= 7.3.3.2`
- `aix >= 7.3.4, <= 7.3.4.1`

## Remediation

Upgrade past the affected range:

- `vios 4.1.2.20`