CVEvulnerability

CVE-2025-47812

10.0 CRITICAL Known exploited Published 2025-07-10 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

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

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).

Added to KEV
2025-07-14
Remediation due
2025-08-04
Ransomware use
Unknown
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.
Notes
https://www.wftpserver.com/serverhistory.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-47812
Status
Analyzed
Published
2025-07-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-158

Description

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.

Affected configurations

• wftpserver wing ftp server (< 7.4.4)

Related

Weakness · CWE (1)

  • CWE-158 Improper Neutralization of Null Byte or NUL Character weakness

References