CVE-2026-17142: Vulnerabilities in IBM AIX and PowerVM VIOS

Q: Which IBM products should be assessed for exposure?

IBM AIX and IBM PowerVM VIOS are listed as affected software.

Q: Does exploitation require local access?

No. The issue is described as allowing a remote attacker to execute arbitrary commands through improper authentication.

Published Aug 15, 2026

Updated

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary commands due to improper authentication.

Affected Software

10 affected components

IBM AIX<=7.2

IBM AIX<=7.3

IBM PowerVM VIOS<=4.1

IBM VIOS>=4.1.0<4.1.0.50

IBM VIOS>=4.1.1.0<4.1.1.30

IBM VIOS>=4.1.2.0<4.1.2.20

IBM AIX>=7.2.5<=7.2.5.212

IBM AIX>=7.3.2<=7.3.2.5

IBM AIX>=7.3.3<=7.3.3.2

IBM AIX>=7.3.4<=7.3.4.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade IBM PowerVM VIOS to a version that resolves this vulnerability.
Fixed in 4.1.0.50
Upgrade
Upgrade IBM PowerVM VIOS to a version that resolves this vulnerability.
Fixed in 4.1.1.30Patch key_w_apar4.1.1
Upgrade
Upgrade IBM PowerVM VIOS to a version that resolves this vulnerability.
Fixed in 4.1.2.20Patch key_w_apar4.1.2
Upgrade
Upgrade IBM AIX 7.3 to a version that resolves this vulnerability.
Patch IJ5956608/14/2026
Upgrade
Upgrade IBM AIX 7.3 to a version that resolves this vulnerability.
Patch IJ5956508/14/2026
Upgrade
Upgrade IBM AIX 7.3 to a version that resolves this vulnerability.
Patch IJ5956408/14/2026
Upgrade
Upgrade IBM AIX 7.2 to a version that resolves this vulnerability.
Patch IJ59563
Compensating control
For VIOS 4.1.0 and VIOS 4.1.1, migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above (additional steps required).
Operational
Perform an LPAR reboot to complete the SP/FP update after applying the AIX service pack / VIOS fix pack remediation levels.

Event History

Aug 15, 2026

CVE Published

via IBM·12:00 AM

Data Sourced

via IBM·12:00 AM

DescriptionAffected Software

Aug 20, 2026

CVE Published

via MITRE·09:54 PM

Data Sourced

via MITRE·09:54 PM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·10:17 PM

RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

IBM-7283858

Frequently Asked Questions

Which IBM products should be assessed for exposure?

IBM AIX and IBM PowerVM VIOS are listed as affected software.

Does exploitation require local access?

No. The issue is described as allowing a remote attacker to execute arbitrary commands through improper authentication.

CVE-2026-17142: Vulnerabilities in IBM AIX and PowerVM VIOS

Affected Software

Remediation

Event History

Parent advisories

Frequently Asked Questions

Which IBM products should be assessed for exposure?

Does exploitation require local access?

Company

Resources

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