CVE-2026-25108: Soliton Systems K.K FileZen OS Command Injection Vulnerability
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.
| Vendor | Soliton Systems K.K |
|---|---|
| Product | FileZen |
| Date added to KEV | 2026-02-24 |
| Due date (BOD 22-01) | 2026-03-17 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-78 |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
What to do
- Identify every instance of Soliton Systems K.K FileZen in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Federal civilian agencies must act by 2026-03-17 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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Sources
- NVD entry for CVE-2026-25108 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://jvn.jp/en/jp/JVN84622767/
- https://nvd.nist.gov/vuln/detail/CVE-2026-25108