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CVE-2026-42167

Quick assessment

Affected
ProFTPD ProFTPD
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ProFTPD是ProFTPD开源的一套可配置性强的开放源代码的FTP服务器软件。 ProFTPD 1.3.10rc1之前版本存在SQL注入漏洞，该漏洞源于mod_sql模块，在记录带有%U等扩展的USER请求且SQL后端允许命令（如COPY TO PROGRAM）的场景下，可能导致远程攻击者通过用户名执行任意代码。

CVSS 8.1 · High EPSS 7.31% · P94

Public Exploits 1

ExploitDB · 1 EDB-52658 [remote]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
ProFTPD ProFTPD 1.3.7b< 1.3.9a affected
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I. Basic Information for CVE-2026-42167

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ProFTPD SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ProFTPD是ProFTPD开源的一套可配置性强的开放源代码的FTP服务器软件。 ProFTPD 1.3.10rc1之前版本存在SQL注入漏洞，该漏洞源于mod_sql模块，在记录带有%U等扩展的USER请求且SQL后端允许命令（如COPY TO PROGRAM）的场景下，可能导致远程攻击者通过用户名执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ProFTPD ProFTPD 1.3.7b ~ 1.3.9a -

II. Public POCs for CVE-2026-42167

# POC Description Source Link Shenlong Link
1 ProFTPD mod_sql before 1.3.10rc1 contains a remote code execution caused by unsafe username handling with SQL backend commands in USER request logging expansions, letting remote attackers execute arbitrary code, exploit requires SQL backend allowing commands. https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2026/CVE-2026-42167.yaml POC Details
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III. Intelligence Information for CVE-2026-42167

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Vendor Advisories for CVE-2026-42167 (1)

Proof of Concept for CVE-2026-42167 (1)

Mailing List Discussions for CVE-2026-42167 (1)

Security Blog Posts for CVE-2026-42167 (1)

Vendor Pages for CVE-2026-42167 (1)

IV. Related Vulnerabilities

Same product: ProFTPD
Same vendor: ProFTPD
Same weakness: CWE-89

V. Comments for CVE-2026-42167

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