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Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2026-25108
Soliton Systems K.K FileZen OS Command Injection Vulnerability - [Actively Exploited]
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.

INFO

Published Date :

Feb. 13, 2026, 4:15 a.m.

Last Modified :

Feb. 24, 2026, 9:38 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

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.

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.

Known Ransomware Campaign Use:

Unknown

Notes :

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

Affected Products

The following products are affected by CVE-2026-25108 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Soliton filezen
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.0 HIGH ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 3.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 4.0 HIGH [email protected]
Solution
Remediate OS command injection by disabling virus check or updating FileZen.
  • Disable the virus check option in FileZen.
  • Update FileZen to the latest version.
  • Apply vendor patches if available.
Public PoC/Exploit Available at Github

CVE-2026-25108 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-25108.

URL Resource
https://jvn.jp/en/jp/JVN84622767/ Third Party Advisory
https://www.soliton.co.jp/support/2026/006657.html Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25108 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-25108 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-25108 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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Curated AI news aggregator from premium sources - Auto-updated with webhook, paginated display

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JavaScript PLpgSQL HTML CSS Shell

Updated: 2 days, 20 hours ago
2 stars 1 fork 1 watcher
Born at : Dec. 10, 2025, 5:35 a.m. This repo has been linked 3 different CVEs too.
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DevGreick/devgreick

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Python

Updated: 12 hours, 3 minutes ago
1 stars 0 fork 0 watcher
Born at : Oct. 29, 2024, 8:10 p.m. This repo has been linked 10 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-25108 vulnerability anywhere in the article.

  • Help Net Security
Week in review: Self-spreading npm malware hits developers, Cisco SD-WAN 0-day exploited since 2023

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Identity verification systems are struggling with synthetic fraud Fake and expired IDs keep showing up ... Read more

Published Date: Mar 01, 2026 (4 days, 1 hour ago)
  • CybersecurityNews
CISA Confirms Active Exploitation of FileZen Vulnerability

CISA Confirms Exploit FileZen Vulnerability U.S. authorities have confirmed that threat actors are actively exploiting a critical vulnerability in FileZen by Soliton Systems K.K.. Due to the high risk ... Read more

Published Date: Feb 25, 2026 (1 week ago)
  • Help Net Security
CISA flags exploited FileZen command injection bug, patch now! (CVE-2026-25108)

CISA has added CVE-2026-25108, an OS command injection vulnerability in Soliton Systems’ FileZen secure file transfer solution, to its Known Exploited Vulnerabilities (KEV) catalog. The vendor has con ... Read more

Published Date: Feb 25, 2026 (1 week, 1 day ago)
  • The Hacker News
CISA Confirms Active Exploitation of FileZen CVE-2026-25108 Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a recently disclosed vulnerability in FileZen to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of ... Read more

Published Date: Feb 25, 2026 (1 week, 1 day ago)
  • CybersecurityNews
FileZen File Transfer App Vulnerability Enables Arbitrary Command Execution

FileZen File Transfer App Vulnerability A critical vulnerability has been discovered in the file transfer solution from Soliton Systems K.K., potentially allowing attackers to execute arbitrary system ... Read more

Published Date: Feb 16, 2026 (2 weeks, 2 days ago)
  • Daily CyberSecurity
JPCERT/CC Warns of Active Exploits Targeting Critical FileZen Command Injection Flaw

A critical security vulnerability in FileZen, the popular file transfer appliance from Soliton Systems K.K., is currently under active attack. In a new security advisory, JPCERT/CC has sounded the ala ... Read more

Published Date: Feb 16, 2026 (2 weeks, 3 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-25108 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Feb. 24, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-78
    Added CPE Configuration OR *cpe:2.3:a:soliton:filezen:*:*:*:*:*:*:*:* versions from (including) 4.2.1 up to (excluding) 5.0.11
    Added Reference Type JPCERT/CC: https://jvn.jp/en/jp/JVN84622767/ Types: Third Party Advisory
    Added Reference Type JPCERT/CC: https://www.soliton.co.jp/support/2026/006657.html Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25108 Types: US Government Resource
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 24, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25108
  • CVE Modified by [email protected]

    Feb. 13, 2026

    Action Type Old Value New Value
    Changed Description FileZen contains an OS command injection vulnerability. When FileZen virus check option is enabled, a logged-in user may send a specially crafted HTTP request to execute an arbitrary OS command. 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.
  • New CVE Received by [email protected]

    Feb. 13, 2026

    Action Type Old Value New Value
    Added Description FileZen contains an OS command injection vulnerability. When FileZen virus check option is enabled, a logged-in user may send a specially crafted HTTP request to execute an arbitrary OS command.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-78
    Added Reference https://jvn.jp/en/jp/JVN84622767/
    Added Reference https://www.soliton.co.jp/support/2026/006657.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.7
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact