UpHeron
All vulnerabilities

Servers and applications

CVE-2025-47812

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…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 14 Jul 2025.

Severity
Critical 10.0
Published
10 Jul 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.4.4
Sources
NVD

Affected software

SoftwareAffected versions
Wing FTP ServerServers and applications · cpe:a:wftpserver:wing_ftp_server
  • Every version before 7.4.4

Known exploited

CISA name
Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability
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 for US agencies
4 Aug 2025
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-47812
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-47812