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Vulnerabilities

Vulnerability · CVE-2026-25108

Soliton Systems K.K FileZen OS Command Injection Vulnerability

Published Feb 12, 2026 · catalog updated Jun 17, 2026 · Soliton Systems K.K FileZen

Patch now

CVE-2026-25108 is in the CISA known-exploited catalog, due Mar 17, 2026. Confirm Soliton Systems K.K FileZen against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.7
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
5.25%
Remediation
Remediation guidance
Affected products
cpe soliton/filezen · vendor Soliton Systems K.K FileZen

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe soliton/filezenversion unspecified
  • vendor Soliton Systems K.K FileZenversion unspecified

How to fix CVE-2026-25108

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-25108 is in the CISA known-exploited catalog, due Mar 17, 2026. Confirm Soliton Systems K.K FileZen against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 5.25%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 12, 2026 · Catalog

    Detected

    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.

  2. Feb 24, 2026 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Mar 17, 2026 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Jun 17, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2026-25108

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2026-25108

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-25108

    30-day exploitation probability 5.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-25108

    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.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2026-25108

    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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.