Vulnerability in Vsftpd

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-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 · last modified .

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-119567?
CVE-2026-119567 is a low-severity vulnerability in Vsftpd, classified under Incomplete List of Disallowed Inputs. CVSS score: 3.1/10. Published 2026-10-30.
How severe is CVE-2026-119567?
Low severity. CVSS v3 base score is 3.1 out of 10.