CVE-2026-25108 Soliton Systems K.K FileZen OS Command Injection

Exploited in the wild High 8.7 Published 13 Feb 2026 Updated 26 Feb 2026

A logged-in user can execute arbitrary OS commands if the antivirus check option is enabled in FileZen.

Exploited in the wild: Since 24 Feb 2026
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-25108?

CVE-2026-25108 is a high-severity command injection vulnerability in Soliton Systems K.K. FileZen, published on 13 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

FileZen contains an OS command injection vulnerability. When FileZen Antivirus Check Option is enabled, a logged-in user may send a specially crafted HTTP request to execute an arbitrary OS command.

Weakness: CWE-78

Which versions are affected by CVE-2026-25108?

It affects 1 product.

Products include Soliton Filezen.

How do I fix CVE-2026-25108?

No fix has been published for CVE-2026-25108 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Mar 2026.

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

Is CVE-2026-25108 being exploited?

Yes. Attackers have exploited CVE-2026-25108 in the wild since at least 24 Feb 2026.

Sources

Also known as GHSA-qgqm-fpvv-jgfh.