FileZen OS Command Injection via HTTP Request
CVE-2026-25108 Published on February 13, 2026
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.
Known Exploited Vulnerability
This Soliton Systems K.K FileZen OS Command Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Soliton Systems K.K FileZen contains an OS command injection vulnerability when an user logs-in to the affected product and sends a specially crafted HTTP request.
The following remediation steps are recommended / required by March 17, 2026: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-25108 has been classified to as a Shell injection vulnerability or weakness.
Affected Versions
Soliton Systems K.K. FileZen:- Version V5.0.0 to V5.0.10 is affected.
- Version V4.2.1 to V4.2.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.