CVE-2026-16816
Critical
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
SeverityCritical
CVSS9.9
Exploit probability—
Product
Ibm Vios
PublishedAug 19, 2026
First seenAug 19, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- ibm vios4.1.0.50, 4.1.1.30, 4.1.2.20 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm vios | 4.1.0 ≤ v < 4.1.0.50, 4.1.1.0 ≤ v < 4.1.1.30, 4.1.2.0 ≤ v < 4.1.2.20 | 4.1.0.50, 4.1.1.30, 4.1.2.20 |
| ibm aix | 7.2.5 ≤ v ≤ 7.2.5.212, 7.3.2 ≤ v ≤ 7.3.2.5, 7.3.3 ≤ v ≤ 7.3.3.2, 7.3.4 ≤ v ≤ 7.3.4.1 | — |
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