ClosedPatched

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

Wing FTP Server

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). Added to CISA KEV on 2025-07-14.

Why this severity: CVSS 10.0 (CNA, v3.1); actively exploited (CISA KEV)

Started: Jul 14, 2025
Closed: Jul 14, 2025
CVE: CVE-2025-47812

Follow this incident

Updated Jul 14, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Jul 14, 2025
CISA added CVE-2025-47812 to the KEV catalog (due 2025-08-04).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

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