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CVE-2025-47812

10.0
CRITICALCVSS v3.1 Base Score
92.93%
HIGH RiskEPSS (100th percentile)
KEV

In Wing FTP Server before 7.4.4. the user and admin web interfaces mishandle '\0' bytes, ultimately allowing injection of arbitrary Lua code into user session files. This can be used to execute arbitrary system commands with the privileges of the FTP service (root or SYSTEM by default). This is thus a remote code execution vulnerability that guarantees a total server compromise. This is also exploitable via anonymous FTP accounts.

Published: 7/10/2025
Modified: 11/5/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability

Vendor / Product:

Wing FTP Server Wing FTP Server

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.

Due Date: 8/4/2025(OVERDUE)
Added to KEV:

7/14/2025

Notes:

https://www.wftpserver.com/serverhistory.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-47812

Vulnerability Summary

CVSS v3 Score

10CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

92.93%HIGH Exploitation Risk
100th percentile

This vulnerability has a 92.93% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.

CWE Classification

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Same Weakness Type(CWE-158)

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