LOW 2.3 NVD
CVE-2026-119567
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-prefixe
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.
References
- https://abraxaslabs.tech/research/vsftpd-cmds-denied-alias
- https://security.appspot.com/vsftpd.html
- https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-cmds-denied-bypass-via-rfc-775-c
This low severity vulnerability with a CVSS score of 2.3 was published on 2026-10-30 via NVD.
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