CVE-2026-16903

CRITICAL 9.6

Vulnerabilities in IBM AIX and PowerVM VIOS

CVSS Score

9.6

EPSS Score

0.0%

EPSS Percentile

0th

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code or cause a denial of service due to an out-of-bounds write.

CWE	CWE-787
Vendor	ibm
Product	aix
Published	Aug 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

IBM / AIX

7.2 7.3

IBM / PowerVM VIOS

4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

ibm.com: https://www.ibm.com/support/pages/node/7283858

Credits

CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/).