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CVE

CVE-2010-20103

9.3

CVSScritical

Exploitable remotely over the internet · no authentication required.

Description

A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.

Attack Vector

Network

Privileges Req.

None

User Interaction

None

proftpd (professional ftp daemon)

Updated Sep 18, 2026View on NVD →

S4E scanners

criticalProduct Based Network Vulnerabilities~10 seconds

CVE-2010-20103 Scanner

CVE-2010-20103 Scanner - Remote Code Execution (RCE) vulnerability in ProFTPD

Used 3 times · 5.9k assets checked · domain, subdomain, ipv4

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criticalProduct Based Web Vulnerabilities~10 seconds

CVE-2010-20103 Scanner

CVE-2010-20103 Scanner - Remote Code Execution (RCE) vulnerability in ProFTPD

Used 2.8k times · 5.9k assets checked · domain, subdomain, ipv4

Scanner page →Run scanner

CVE history: proftpd (professional ftp daemon)

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