CVE-2026-25108

HIGH
8.8
CVSS Score
Published: February 13, 2026 at 03:39 AM UTC
Updated: June 17, 2026 at 10:24 AM UTC
2 products affected across 2 vendorsFilezenFileZen

Using FileZen by Soliton Systems K.K.?

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Severity
HIGH8.8
Exploitation
CISA KEV
Exploit prediction
EPSS 5%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score5.2%

EPSS (Exploit Prediction Scoring System) estimates a 5.2% chance this CVE is exploited in the wild within the next 30 days — higher than 93% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.
Ransomware Use
Unknown
Added to KEV
Feb 24, 2026
Remediation Due
Mar 17, 2026
230 days overdue

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.2.1 ≤ v < 5.0.11
v ≤ 4.2.8v ≤ 5.0.10

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Third Party Advisory
Source: cverecord
https://jvn.jp/en/jp/JVN84622767/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25108

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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