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.
The record classifies CVE-2025-47812 under weakness class CWE-158. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 452 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 10 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 92.4% probability of exploitation in the next 30 days, higher than 99.7% of all scored CVEs
- CISA KEV
- Listed since 2025-07-14, federal remediation deadline 2025-08-04
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2025-07-10, last modified 2025-11-05
Is CVE-2025-47812 being exploited?
CISA added CVE-2025-47812 to the Known Exploited Vulnerabilities catalog on 2025-07-14, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2025-08-04 under BOD 22-01. It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.
Affected products and versions
- Wftpserver: Wing Ftp Server
How to fix CVE-2025-47812
The record marks a vendor fix as available for CVE-2025-47812. Because CVE-2025-47812 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2025-08-04. No patch URL is recorded on this row, so the fixed version has to be read from the vendor advisory in the sources below.
Threat activity tracking CVE-2025-47812
1 tracked threat in the Threadlinqs corpus references CVE-2025-47812, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Seeded from threadlinqs-intel and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.