CVE entry · CVE-2026-25108
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.
- Actively exploited: added to CISA’s KEV catalog on February 24, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: March 17, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Soliton Systems K.K FileZen, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.