CVE-2026-25108
CWE-78Published: February 13, 2026· Updated: Feb 13, 2026
Official 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.
Risk Analysis
FileZen contains an OS command injection vulnerability that allows a logged-in user to execute arbitrary OS commands by sending a specially crafted HTTP request when the Antivirus Check Option is enabled. The high CVSS score, EPSS score, and confirmed exploitation indicate this is a severe vulnerability that is actively being targeted.
This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog. While it requires a logged-in user, its remote exploitability via network makes it a significant risk.
Administrators should apply available patches for FileZen to address this OS command injection vulnerability. Ensure that user accounts have the least necessary privileges and regularly monitor for unusual activity.
Technical Analysis
CVE-2026-25108 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
CISA has added CVE-2026-25108 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
News & Research Mentioning CVE-2026-25108
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 active exploitation. The vulnerability, tracked as CVE-2026-25108 (CVSS v4 score: 8.7), is a case of operating system (OS) command injection that could allow an authenticated user to execute [xlite_meta score:53 src:The Hacker News xlite_fp:cb278c721a023f104db87e323e75e964127849121bc281a46549832703033523]
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-25108 Soliton Systems K.K. FileZen OS Command Injection Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks [xlite_meta score:48 src:CISA Alerts xlite_fp:a9ea291d258b50f914858a3285a6eeb636b70114a4a11c92fb50851387db2ef8]
All References (2)
Quick Facts
Known Threat Actors
Related CVEs (CWE-78)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-25108 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1