CyberRota Analysis
AI-GeneratedXlight FTP Server versions prior to 3.9.5 are vulnerable to a pre-authentication heap buffer overflow, which allows remote unauthenticated attackers to exploit the server by sending a malformed SSH client identification string. This critical vulnerability can lead to arbitrary code execution, potentially compromising the server and its data. Organizations using Xlight FTP Server should prioritize patching to mitigate the risk of exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Xlight FTP Server before 3.9.5 contains a pre-authentication heap buffer overflow vulnerability that allows remote unauthenticated attackers to write past the end of a heap buffer by sending a malformed SSH client identification string. A logic error in the recv loop's termination condition uses an incorrect OR operator where an AND operator is required, enabling exploitation on any SSH or SFTP connection before authentication occurs.