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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Wftpserver Wing_Ftp_Server
cpe:2.3:a:wftpserver:wing_ftp_server:*:*:*:*:*:*:*:*
|
— |
7.4.4
|
References 6
https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-…
cve@mitre.org
https://www.vicarius.io/vsociety/posts/cve-2025-47812-detection-script-remote-c…
cve@mitre.org
https://www.vicarius.io/vsociety/posts/cve-2025-47812-mitigation-script-remote-…
cve@mitre.org
https://www.wftpserver.com
cve@mitre.org
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025…
134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.huntress.com/blog/wing-ftp-server-remote-code-execution-cve-2025-47…
134c704f-9b21-4f2e-91b3-4a467353bcc0