How severe is CVE-2026-25108?

CVE-2026-25108 has a CVSS 3.0 base score of 8.8 (HIGH). EPSS estimates a 5.1% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

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

CISA Known Exploited Vulnerabilities

Soliton Systems K.K FileZen OS Command Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2026-02-24

Remediation 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.

CISA notes
https://jvn.jp/en/jp/JVN84622767/ ; https://nvd.nist.gov/vuln/detail/CVE-2026-25108

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.

Severity

CVSS 3.0 · CNA8.8 HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0 · CNA8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Soliton Systems K.K.	FileZen	V5.0.0 to V5.0.10
Soliton Systems K.K.	FileZen	V4.2.1 to V4.2.8

References

2 Links

Other references

Record Details

Published

2026-02-13

Last updated

2026-02-26

Assigner (CNA)

jpcert

Credited to

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-78 · OS Command Injection

Application Security Tools Penetration Testing Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.