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    CVE-2026-67193

    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.

    Published:Jul 29, 2026
    Last Modified:Aug 14, 2026
    EPS:Jul 29, 2026
    EPSS Score:0.00264
    CVSS Score:5.3

    Affected Products

    Vendor
    Xlightftpd
    Product
    Xlight Ftp Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

    Related CVEs

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    CVE-2019-25681 (CVSS 8.6) — Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows loca…
    CVE-2023-53886 (CVSS 5.1) — Xlight FTP Server 3.9.3.6 contains a stack buffer overflow vulnerability in the 'Execute Program' configuratio…
    CVE-2024-46483 (CVSS 9.8) — Xlight FTP Server <3.9.4.3 has an integer overflow vulnerability in the packet parsing logic of the SFTP serve…
    CVE-2024-0737 (CVSS 5.3) — A vulnerability classified as problematic was found in Xlightftpd Xlight FTP Server 1.1. This vulnerability af…
    CVE-2010-2695 (CVSS 6.5) — Directory traversal vulnerability in the SFTP/SSH2 virtual server in Xlight FTP Server 3.5.0, 3.5.5, and possi…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High