ACTIVELY EXPLOITED
CVE-2025-47812: Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability
| Vendor | Wing FTP Server |
|---|---|
| Product | Wing FTP Server |
| Actively exploited | Yes |
| Added to CISA KEV | 14 Jul 2025 |
| CISA federal deadline | 4 Aug 2025 |
| Weakness (CWE) | CWE-158 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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).
SOURCES
Other Wing FTP Server flaws
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.