Description
Xlight FTP Server before 3.9.5 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the server-s current GetTickCount() value by sending a USER command with a username ending in the :adm suffix. Attackers can trigger the admin protocol path within the standard FTP listener pre-authentication to leak timing information from the FTP 331 response without requiring a separate port or configuration change.
CVSS 5.3EPSS 0.264%Risk 0.54
View source- Published
- 2026-07-29 16:17:57
- Affected versions
- <3.9.5
- Type
- Critical software
- Last modified
- 2026-07-30 20:04:51
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N