CVE-2026-16906 IBM i is Affected By Multiple Vulnerabilities in Domain Name System

High 8.8 Published Updated

Remote authenticated attackers can execute arbitrary commands with elevated privileges on IBM i due to improper neutralization of special elements in OS commands.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16906?

CVE-2026-16906 is a high-severity command injection vulnerability in Ibm I, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM i 7.6, and 7.5 could allow a remote authenticated attacker to execute arbitrary commands with elevated privileges due to improper neutralization of special elements used in an OS command.

Weakness: CWE-78

Which versions are affected by CVE-2026-16906?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-16906?

No fix has been published for CVE-2026-16906 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-2026-16906 being exploited?

There is no known exploitation of CVE-2026-16906 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-fm4w-xpvq-9p4j.

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