CVE-2026-42167 EXPLOIT
8.1
HIGH · CVSS 3.1 · EPSS 7.3% (pctl 94)
Patch early
A public exploit exists.
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).
Scoring
| CVSS | 8.1 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 7.31% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-89 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2026-04-28 |
| Last modified | 2026-07-24 |
Affected (1)
| Vendor | Product |
|---|---|
| proftpd | proftpd |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | CVE-2026-42167 - ProFTPD mod_sql post-authentication SQLi - RCE | 2026-08-25 |
References
- http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1
- https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc
- https://github.com/proftpd/proftpd/issues/2052
- https://www.openwall.com/lists/oss-security/2026/05/01/4
- 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
- https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc
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