All vulnerabilities
CVE-2025-47812

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

Wing FTP Server Wing FTP ServerNetwork & edge
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationExploited in the wildAdded to KEV 14 Jul 2025CISA KEV
Exploit odds (EPSS)93.9%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in7.4.4Fixed versionCVE List
Federal deadline4 Aug 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 19 Jun 2014Exploit code publicMetasploit
  2. 10 Jul 2025, 00:00 UTCPublishedCVE List
  3. 14 Jul 2025Added to CISA KEVCISA KEV

Public exploit code and templates 4

  • Exploit moduleWing FTP Server Authenticated Command Execution 19 Jun 2014Metasploit
  • Exploit moduleWing FTP Server NULL-byte Authentication Bypass (CVE-2025-47812) 30 Jun 2025Metasploit
  • Remote exploitWing FTP Server 7.4.3 - Unauthenticated Remote Code Execution (RCE) 2 Jul 2025Exploit-DB
  • Scanner templateWing FTP Server <= 7.4.3 - Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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).

Text from CVE List

Affected versions 1

  • Wing FTP Serveraffected: all versions before 7.4.4CVE List

References 8