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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 14 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:xlightftpd:xlight_ftp_server:*:*:*:*:*:*:*:*

Thu, 30 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Xlightftpd
Xlightftpd xlight Ftp Server
Vendors & Products Xlightftpd
Xlightftpd xlight Ftp Server

Wed, 29 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 29 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
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.
Title Xlight FTP Server < 3.9.5 Information Disclosure via USER Command
Weaknesses CWE-203
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-14T16:50:48.732Z

Reserved: 2026-07-28T16:06:49.774Z

Link: CVE-2026-67193

cve-icon Vulnrichment

Updated: 2026-07-29T17:53:53.692Z

cve-icon NVD

Status : Deferred

Published: 2026-07-29T16:17:57.833

Modified: 2026-07-30T20:04:51.110

Link: CVE-2026-67193

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T13:15:05Z

Weaknesses