Description
vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories.
Published: 2026-10-30
Score: 2.3 Low
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 30 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories.
Title vsftpd through 3.0.5 cmds_denied Bypass via RFC 775 Command Aliases
First Time appeared Vsftpd Project
Vsftpd Project vsftpd
Weaknesses CWE-184
CPEs cpe:2.3:a:vsftpd_project:vsftpd:*:*:*:*:*:*:*:*
Vendors & Products Vsftpd Project
Vsftpd Project vsftpd
References
Metrics cvssV3_1

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

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Vsftpd Project Vsftpd
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-30T11:31:13.756Z

Reserved: 2026-10-30T10:53:32.356Z

Link: CVE-2026-119567

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-30T12:16:44.433

Modified: 2026-10-30T12:16:44.433

Link: CVE-2026-119567

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T12:45:12Z

Weaknesses
  • CWE-184

    Incomplete List of Disallowed Inputs