CISA Issues Alert on Active Exploitation of FileZen Vulnerability
The Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog to include a new vulnerability, citing active exploitation. This vulnerability affects FileZen, a file-sharing and data transfer…
The Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog to include a new vulnerability, citing active exploitation. This vulnerability affects FileZen, a file-sharing and data transfer product developed by Soliton Systems K.K.
The identified flaw, CVE-2026-25108, is classified as an OS Command Injection vulnerability. This type of vulnerability allows attackers to execute arbitrary operating system commands on a target system, potentially leading to full system compromise. Such vulnerabilities are deemed high-severity threats and are often exploited by cyber attackers as initial access points into enterprise networks.
CVE ID CVSS Score Description
CVE-2026-25108 N/A Soliton Systems K.K. FileZen OS Command Injection Vulnerability
This vulnerability affects FileZen, a file-sharing and data transfer product developed by Soliton Systems K.K.
CISA's KEV Catalogue mandates all Federal Civilian Executive Branch (FCEB) agencies to remediate listed vulnerabilities within a specified timeframe. This directive aims to mitigate the risks posed by known vulnerabilities across federal networks. Agencies that fail to address these vulnerabilities within the required window remain vulnerable to active threats.
Although BOD 22-01 is binding only for federal agencies, CISA advises all private and public sector organizations to prioritize remediation of KEV Catalog entries. Timely patching of actively exploited vulnerabilities is one of the most effective defenses against cyberattacks.
Organizations using FileZen should review CISA's KEV Catalogue for remediation deadlines and apply available patches or mitigations from Soliton Systems K.K. Security teams should audit systems for any signs of unauthorized command execution activity. Incorporating KEV Catalog entries into routine vulnerability management workflows is recommended.
Based on reporting by GBHackers.
