CVE-2026-42167HIGH 8.1EPSS p90.4%

CVE-2026-42167CVE-2026-42167

proftpd / proftpd

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 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS4.44% probability of exploitation · percentile 90.4% · 2026-08-03T12:00:16Z
Published2026-04-28
Last modified2026-07-24

Underlying weaknesses· 1

CWE-89

References

  1. http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1
  2. https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc
  3. https://github.com/proftpd/proftpd/issues/2052
  4. https://www.openwall.com/lists/oss-security/2026/05/01/4
  5. https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce
  6. http://www.openwall.com/lists/oss-security/2026/05/01/13
  7. http://www.openwall.com/lists/oss-security/2026/05/01/4
  8. https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an SQL Command ('SQL Injection')cwe-890%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.