CVE-2025-47812

CRITICAL10.0

CISA KEV

Published 2025-07-10 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2025-47812 is a critical-severity (CVSS 10.0) vulnerability in Wing FTP Server Wing FTP Server. CISA added it to the Known Exploited Vulnerabilities catalog on July 14, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by August 4, 2025. CISA does not currently list it as used in ransomware campaigns. Wing FTP Server has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 2 known-exploited Wing FTP Server vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-158

CISA Known-Exploited Vulnerability

Product: Wing FTP Server — Wing FTP Server

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

Date added: 2025-07-14 · Due: 2025-08-04

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.

References

View on NVD

More exploited Wing FTP Server vulnerabilities

Most recently added to CISA KEV

CVE-2025-47813
Wing FTP Server — Wing FTP Server Information Disclosure Vulnerability
added 2026-03-16

View all →

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