FileZen contains an OS command injection vulnerability.
Affects FileZen V5.0.0 to V5.0.10 and V4.2.1 to V4.2.8 when the Antivirus Check Option is enabled. The checked facts list no fixed version and no vendor rating.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
FileZen, a file-sharing and management software product, is affected by this vulnerability. A logged-in user who sends a specially crafted HTTP request could run arbitrary operating system commands on the server when the antivirus check option is enabled.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- Record last updated
- CISA remediation deadline
Due date for US federal agencies to patch
Affected versions
- Soliton Systems K.K. FileZen
V5.0.0 to V5.0.10
- Soliton Systems K.K. FileZen
V4.2.1 to V4.2.8
References 2
soliton.co.jp
jvn.jp
Questions about CVE-2026-25108
What does this mean?
The bug lets an attacker who can log on to the FileZen web site run an arbitrary operating system command on the FileZen server.Source: jvn.jp
Am I affected, and how do I check?
The listed affected versions are V5.0.0 to V5.0.10 and V4.2.1 to V4.2.8, and the bug applies only when the FileZen Antivirus Check Option is enabled. Check your installed FileZen version and whether that option is turned on in FileZen's settings.Source: jvn.jp
What should I do about it?
The checked facts do not name a fixed version, so no upgrade target can be given. Follow the vendor's advisory for an update.Source: jvn.jp
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-02-24, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts give no workaround. Because the bug requires the Antivirus Check Option to be enabled, that option is the setting to review while no fix is available.Source: jvn.jp