CVE-2026-67193 (GCVE-0-2026-67193)

Vulnerability from cvelistv5 – Published: 2026-07-29 15:51 – Updated: 2026-08-14 16:50
VLAI
Title
Xlight FTP Server < 3.9.5 Information Disclosure via USER Command
Summary
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.
Severity
6.9 (Medium)
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
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 17:53 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6232 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Xlight Xlight FTP Server Affected: 0 , < 3.9.5 (semver)
    cpe:2.3:a:xlightftpd:xlight_ftp_server:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-01 00:00
Credits
McCaulay Hudson (@_McCaulay) of watchTowr
Show details on NVD website
To clipboard 

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