CVE-2006-5551

This exploit targets a buffer overflow vulnerability in QKSmtpServer3.exe via the RCPT TO command. It uses a crafted payload to execute a bind shell on port 4444, leveraging a hardcoded return address and encoded shellcode.

This exploit targets a buffer overflow vulnerability in QK SMTP <= 3.01 via the RCPT-TO command. It uses a combination of Unicode-aware shellcode and a custom jmpback payload to achieve remote code execution, adding a user to the system.

This exploit targets a format string vulnerability in QK SMTP Server 3.01 and lower via the RCPT TO command, causing a denial-of-service (DoS) by overwriting registers like EIP, EBP, ESI, and EAX. The PoC sends a large buffer to trigger the overflow, demonstrating the vulnerability's potential for further exploitation.