CVE-2026-25108
Published 2026-02-13 · Updated 2026-06-17 · Source vultures@jpcert.or.jp
Summary
CVE-2026-25108 is a high-severity (CVSS 8.8) vulnerability in Soliton Systems K.K FileZen. CISA added it to the Known Exploited Vulnerabilities catalog on February 24, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 17, 2026. CISA does not currently list it as used in ransomware campaigns.
All 1 known-exploited Soliton Systems K.K vulnerabilities →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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Soliton Systems K.K — FileZen
Name: Soliton Systems K.K FileZen OS Command Injection Vulnerability
Date added: 2026-02-24 · Due: 2026-03-17
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.

