CVE-2026-42167

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Summary

CVECVE-2026-42167
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-28 23:16:20 UTC
Updated2026-07-08 03:26:55 UTC
Descriptionmod_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).

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

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

EPSS: 0.042820000 probability, percentile 0.899410000 (date 2026-07-09)

Problem Types: CWE-89 | CWE-89 CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Proftpd Proftpd All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ProFTPD ProFTPD affected 1.3.7b 1.3.9a custom Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/05/01/4 [email protected] www.openwall.com Mailing List
www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1 [email protected] www.proftpd.org Release Notes
github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Third Party Advisory
zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce [email protected] zeropath.com Exploit, Press/Media Coverage, Third Party Advisory
www.openwall.com/lists/oss-security/2026/05/01/4 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
github.com/proftpd/proftpd/issues/2052 [email protected] github.com Exploit, Issue Tracking, Patch
www.openwall.com/lists/oss-security/2026/05/01/13 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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