CVE entry · CVE-2025-47813
CVE-2025-47813: Wing FTP Server Information Disclosure Vulnerability
Wing FTP Server contains a generation of error message containing sensitive information vulnerability when using a long value in the UID cookie.
- Actively exploited: added to CISA’s KEV catalog on March 16, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: March 30, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Wing FTP Server, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (www.wftpserver.com)
- NVD entry (NIST)
- CISA KEV catalog