CVE-2026-42167
8.1
HIGH
CVSS 3.1
EPSS 5.5%
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).
How to fix CVE-2026-42167
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/proftpd-dfsg—no fix listed
Is CVE-2026-42167 being exploited?
Moderate — EPSS is 5.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |