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ExploitedIn CISA KEVFix available

CVE-2025-47812

Exploitation confirmed. First attested on 2025-07-14 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

  • Published2025-07-10
  • Fixed in7.4.4
  • WeaknessCWE-158

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2025-07-02Exploit-DB entryExploit-DB
  2. 2025-07-1017:15CVE publishedNVD
  3. 2025-07-14Added to the CISA KEV catalogCISA KEV
  4. 2025-07-14Listed as exploited by GCVEGCVE
  5. 2025-07-14Exploitation first reportedCISA KEV
  6. 2025-07-1703:55SSVC exploitation set to activeCISA-ADP

Versions per branch

NVD
Wftpserver wing ftp server
BranchAffectedFixed in
7.4< 7.4.47.4.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • wftpserver Wing FTP Serverother versions: not affected
    Affected
    • < 7.4.4fixed in 7.4.4custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-09-15

Fix

  1. Update Wftpserver wing ftp server to 7.4.4
  2. CISA’s required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.due 2025-08-04

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
EDB-52347
Exploit-DB
Proof of concept
Metasploit modules
2 modulesexploit/multi/http/wingftp_null_byte_rcerank: excellentexploit/windows/ftp/wing_ftp_admin_execrank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2025-07-14
Patch Due Date
2025-08-04
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2025-07-10
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-j4xf-75rr-vvrv

Frequently asked questions

What is 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 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.

Is CVE-2025-47812 actively exploited?

Yes. CVE-2025-47812 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2025-08-04.

What is the CVSS score for CVE-2025-47812?

CVE-2025-47812 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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