CVE-2026-18824 Vulnerabilities in IBM AIX and PowerVM VIOS

High 8.4 Published Updated

Remote authenticated attackers can execute arbitrary commands on IBM AIX and PowerVM VIOS due to improper neutralization of special elements.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-18824?

CVE-2026-18824 is a high-severity command injection vulnerability in Ibm Aix, published on 20 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-78

Which versions are affected by CVE-2026-18824?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2026-18824?

No fix has been published for CVE-2026-18824 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-18824 being exploited?

There is no known exploitation of CVE-2026-18824 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-3gv9-94hr-5c9w.

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