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

criticalknown exploitedCVE-2026-25108
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as 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.

CSIRTS triage

vendor: Soliton Systems K.Kproduct: FileZenRemote code execution
What
An OS command injection vulnerability allows execution of arbitrary commands upon user login.
Who is affected
Users logging into Soliton Systems K.K FileZen.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Patch FileZen to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-02-24
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-25108

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-25108coverage & exploitation statusNVD · CVE.org

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