CVE-2025-26331 Command injection in Wyse Proprietary OS (Modern ThinOS)

High 7.8 Published Updated

A local low-privileged attacker can exploit a command injection flaw in Dell ThinOS to achieve arbitrary code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-26331?

CVE-2025-26331 is a high-severity command injection vulnerability in Dell Wyse Proprietary OS (Modern ThinOS), published on 7 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Dell ThinOS 2411 and prior, contains an Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to arbitrary code execution.

Weakness: CWE-77

Which versions are affected by CVE-2025-26331?

It affects 1 product.

Products include Dell Thinos.

How do I fix CVE-2025-26331?

No fix has been published for CVE-2025-26331 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-2025-26331 being exploited?

There is no known exploitation of CVE-2025-26331 in the wild and no public exploit code.

Sources

Also known as GHSA-pppp-mqfr-xwwh.

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