CVE-2026-42167
80Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 8.1epss 7.4%
from disclosure to weapon0 days
Published on NVDApr 28
1st PoCApr 28
VulnCheck+34d
exploitation probability
7.4%top 6% of all CVEs
observed exploitation
yesVulnCheck
12 public exploit(s)
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).
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
ProFTPD · ProFTPDpublic PoCs found — 12
exploitdbwww.exploit-db.com/exploits/52658unverifiedgithubgithub.com/ZeroPathAI/proftpd-CVE-2026-42167-poc★ 24githubgithub.com/dinosn/proftpd-CVE-2026-42167-analysis★ 3githubgithub.com/jimmexploit/CVE-2026-42167-PoC★ 1githubgithub.com/Sl4cK0TH/CVE-2026-42167-PoC★ 0githubgithub.com/efeanilarslan/CVE-2026-42167-Exploit★ 0githubgithub.com/kaleth4/CVE-2026-42167★ 0vulncheckvulncheck.com/xdb/b5971aada134unverifiedvulncheckvulncheck.com/xdb/038b250f6d4dunverifiedvulncheckvulncheck.com/xdb/3aee872a9ce9unverifiedvulncheckvulncheck.com/xdb/088e591804e7unverifiedvulncheckvulncheck.com/xdb/e87dcf10506aunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/proftpd/proftpd/issues/2052https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-pochttps://www.openwall.com/lists/oss-security/2026/05/01/4https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rcehttp://www.openwall.com/lists/oss-security/2026/05/01/13http://www.openwall.com/lists/oss-security/2026/05/01/4http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1