CVE-2025-47812 - Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability

Vulnerability Name

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

Description

Wing FTP Server contains an improper neutralization of null byte or NUL character vulnerability that can allow 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).

Known To Be Used in Ransomware Campaigns?

Unknown

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.

Additional Notes

https://www.wftpserver.com/serverhistory.htm

https://nvd.nist.gov/vuln/detail/CVE-2025-47812