CVE-2026-25108
HighExploitedPublic exploitFileZen contains an OS command injection vulnerability.
Published Feb 13, 2026 · Updated Feb 26, 2026
Key Facts
Patch immediately- CVE-2026-25108 is a high-severity vulnerability (CVSS 8.7 v4) affecting FileZen (Soliton).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 13, 2026. Public exploit code is available.
- EPSS estimates a 5.2% probability of exploitation in the next 30 days.
- Fixed versions are available, including FileZen 5.0.11.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
5.2%
Higher than 92.4% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-25108 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 24, 2026 | Mar 17, 2026 | Not reported |
| Industry KEV feed | Feb 13, 2026 | Mar 17, 2026 | Not reported |
| CIRCL KEV | Feb 24, 2026 | Mar 17, 2026 | Not reported |
| ENISA EUVD | Feb 24, 2026 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FileZenSoliton | >= V5.0.0 to V5.0.10 | 5.0.11 |
Patched Releases
FileZen
5.0.11
Timeline
Publicly disclosed
Feb 13, 2026
Added to Industry KEV feed
Feb 13, 2026
Added to CISA KEV
Feb 24, 2026
Added to CIRCL KEV
Feb 24, 2026
Added to ENISA EUVD
Feb 24, 2026
Last updated
Feb 26, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherVulnCheck exploitation report
- otherhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25108
FAQ
Common Questions.
FileZen contains an OS command injection vulnerability.
Affected: FileZen (Soliton) versions >= V5.0.0 to V5.0.10. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 13, 2026.
Yes. It was added on Feb 24, 2026 with a federal remediation due date of Mar 17, 2026.
Public exploit code is available.
Fixed versions are available, including FileZen 5.0.11.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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