CVE-2026-42167 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 90%

Affected Products (NVD)

Vendor	Product	Version
proftpd	proftpd	𝑥 ≤ 1.3.9b

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

proftpd-dfsg

bookworm	1.3.8+dfsg-4+deb12u5 fixed
bookworm (security)	vulnerable
bullseye	vulnerable
bullseye (security)	vulnerable
forky	1.3.9c~dfsg-1 fixed
sid	1.3.9c~dfsg-1 fixed
trixie	1.3.8.c+dfsg-4+deb13u2 fixed

Ubuntu Releases

Ubuntu Product

Codename

proftpd-dfsg

bionic	needs-triage
focal	needs-triage
jammy	needs-triage
noble	needs-triage
questing	ignored
resolute	needs-triage
xenial	ignored

Known Exploits!

Common Weakness Enumeration

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

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