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…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability.
- Added
- 14 Jul 2025
- Fix due (US federal)
- 4 Aug 2025
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mitreCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 93.9% · top 0.2% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Weakness
Affected products
- affected < 7.4.4
References (6)
- https://www.wftpserver.com (opens in a new tab)
- https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/ (opens in a new tab)
- https://www.vicarius.io/vsociety/posts/cve-2025-47812-mitigation-script-remote-code-execution-vulnerability-in-wing-ftp-server (opens in a new tab)
- https://www.vicarius.io/vsociety/posts/cve-2025-47812-detection-script-remote-code-execution-vulnerability-in-wing-ftp-server (opens in a new tab)
- https://www.huntress.com/blog/wing-ftp-server-remote-code-execution-cve-2025-47812-exploited-in-wild (opens in a new tab)third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47812 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-47812)Record last updated .