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…
Browse: All 2025 CVEs · All vendors
- CVSS score
- 10.0 Critical
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2025-07-14, remediation due 2025-08-04)
- Weakness (CWE)
- CWE-158
- Published
- 2025-07-10
- Last modified
- 2026-06-17
- NVD status
- Analyzed
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.
Affected products
- wftpserver wing ftp server
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Federal remediation deadline: 2025-08-04.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
References
- https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/
- https://www.vicarius.io/vsociety/posts/cve-2025-47812-detection-script-remote-code-execution-vulnerability-in-wing-ftp-server
- https://www.vicarius.io/vsociety/posts/cve-2025-47812-mitigation-script-remote-code-execution-vulnerability-in-wing-ftp-server
- https://www.wftpserver.com
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47812
- https://www.huntress.com/blog/wing-ftp-server-remote-code-execution-cve-2025-47812-exploited-in-wild
FAQ
Is CVE-2025-47812 actively exploited?
Yes. CISA added CVE-2025-47812 to its Known Exploited Vulnerabilities (KEV) catalog on 2025-07-14, with a federal remediation deadline of 2025-08-04. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2025-47812?
CVE-2025-47812 has a CVSS base score of 10.0 (Critical). Its vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2025-47813 — Wing FTP Server Wing FTP Server
- CVE-2009-1537 — Microsoft DirectX
- CVE-2022-36804 — Atlassian Bitbucket Server and Data Center
- CVE-2022-1040 — Sophos Firewall
- CVE-2026-82078 — PaperCut NG/MF
- CVE-2026-81578 — PaperCut NG/MF
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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