VulnerabilityAnalyzed
CVE-2026-42167
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).
HIGH 8.1EPSS 7.39%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 7.39% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-89
- Affected
- proftpd/proftpd
- Source
- cve@mitre.org
References
- http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1Release Notes
- https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-pocExploit, Third Party Advisory
- https://github.com/proftpd/proftpd/issues/2052Exploit, Issue Tracking, Patch
- https://www.openwall.com/lists/oss-security/2026/05/01/4Mailing List
- https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rceExploit, Press/Media Coverage, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/05/01/13Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/4Mailing List
- https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-pocExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.