CVE-2026-42167
Medium
Elevated severity or exploit probability.
CVSS base
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
7.3%
94.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-89
Published 2026-04-28 · modified 2026-07-24
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-04-28 — Published (NVD)
- 2026-07-24 — Last modified (NVD)
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).
Affected
References
- http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1
- exploit https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc
- exploit https://github.com/proftpd/proftpd/issues/2052
- https://www.openwall.com/lists/oss-security/2026/05/01/4
- exploit https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce
- http://www.openwall.com/lists/oss-security/2026/05/01/13
- http://www.openwall.com/lists/oss-security/2026/05/01/4
- exploit https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc