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CVE-2026-25108

Soliton Systems K.K FileZen OS Command Injection

8.8 HIGHActively exploited (CISA KEV)EPSS 5.18%
  1. Published13 Feb 2026
  2. Added to CISA KEV24 Feb 2026
  3. Remediation due17 Mar 2026
Actively exploited (CISA KEV)

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.

Added to KEV: 24 Feb 2026Federal remediation due: 17 Mar 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Soliton Filezen≥ 4.2.1 < 5.0.11

Remediation

Fixed in
Soliton Filezen≥ 5.0.11

References

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Frequently asked

Is CVE-2026-25108 being actively exploited?

Yes. CVE-2026-25108 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 24 Feb 2026.

How severe is CVE-2026-25108?

CVE-2026-25108 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 5.18% probability of exploitation.

Which products are affected by CVE-2026-25108?

Affected products include Soliton Filezen.

How do I fix CVE-2026-25108?

Upgrade affected software to a fixed version, for example Soliton Filezen 5.0.11 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-25108 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.