The remote host is missing an update to the system as announced in the referenced advisory.
The following package is affected: smbftpd
CVE-2007-5184 Format string vulnerability in the SMBDirList function in dirlist.c in SmbFTPD 0.96 allows remote attackers to execute arbitrary code via format string specifiers in a directory name.
Solution: Update your system with the appropriate patches or software upgrades.