CVE-2026-42167

8.1 HIGH

Published: April 28, 2026 Modified: May 01, 2026

Description

mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1

Source: cve@mitre.org

https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc

Source: cve@mitre.org

https://github.com/proftpd/proftpd/issues/2052

Source: cve@mitre.org

https://www.openwall.com/lists/oss-security/2026/05/01/4

Source: cve@mitre.org

https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2026/05/01/13

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2026/05/01/4

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.1 / 10.0

EPSS (Exploit Probability)

5.5%

90th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-89

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