CVE-2025-65199 Windscribe for Linux 'changeMTU' local privilege escalation

High 7.3 Published Updated

Local users in the windscribe group can execute arbitrary commands as root via command injection in the changeMTU function.

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-2025-65199?

CVE-2025-65199 is a high-severity command injection vulnerability in Windscribe for Linux Desktop App, published on 10 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A command injection vulnerability exists in Windscribe for Linux Desktop App that allows a local user who is a member of the windscribe group to execute arbitrary commands as root via the 'adapterName' parameter of the 'changeMTU' function. Fixed in Windscribe v2.18.3-alpha and v2.18.8.

Weakness: CWE-78

Which versions are affected by CVE-2025-65199?

It affects 1 product.

Products include Windscribe Windscribe.

How do I fix CVE-2025-65199?

No fix has been published for CVE-2025-65199 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-2025-65199 being exploited?

There is no known exploitation of CVE-2025-65199 in the wild and no public exploit code.

Sources

Also known as GHSA-842w-c8vj-r24w.

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