CVE-2026-12943 This Power Hardware Management Console update is being released to address

Critical 9.8 Published Updated

Unauthenticated attackers can execute arbitrary commands with elevated privileges on IBM Power HMC systems due to improper input validation.

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

What is CVE-2026-12943?

CVE-2026-12943 is a critical command injection vulnerability in IBM HMC V10.3.1050.0, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM HMC V10.3.1050.0 through 10.3.1064.0 and IBM HMC V11.1.1110.0 through 11.1.1112.0 Management systems in IBM Power environments (HMC and Novalink) could allow an unauthenticated user to execute arbitrary commands with elevated privileges on the system due to improper validation of user supplied input.

Weakness: CWE-78

Which versions are affected by CVE-2026-12943?

It affects 1 product.

Products include Ibm Hardware Management Console.

How do I fix CVE-2026-12943?

No fix has been published for CVE-2026-12943 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-2026-12943 being exploited?

There is no known exploitation of CVE-2026-12943 in the wild and no public exploit code.

Sources

Also known as GHSA-hvmw-g754-cmg9.

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