by Kastro
Paper/Archive/CVE-2025-47812

CVE-2025-47812

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

KEV · due 4 AugEPSS 94%public exploitSSVC actCVSS 10.0
critical.is priorityof 100
100
CVSS 10.0 (CNA)10.0 / 10 × 3030.0In CISA KEV+3030.0EPSS percentile 99.8.998 × 2020.0Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Wing FTP Server< 7.4.47.4.4CNA

Scores by source

mitre (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

refwftpserver.comrefrcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812refvicarius.io/vsociety/posts/cve-2025-47812-mitigation-script-remote-code-execution-vulnerability-in-wing-ftp-serverrefvicarius.io/vsociety/posts/cve-2025-47812-detection-script-remote-code-execution-vulnerability-in-wing-ftp-serverwriteuphuntress.com/blog/wing-ftp-server-remote-code-execution-cve-2025-47812-exploited-in-wildrefcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47812kevcisa.gov/known-exploited-vulnerabilities-catalog