The remote host is missing an update to wu-ftpd announced via advisory DSA 016-1.
Security people at WireX have noticed a temp file creation bug and the WU-FTPD development team has found a possible format string bug in wu-ftpd. Both could be remotely exploited, though no such exploit exists currently. We recommend you upgrade your wu-ftpd package immediately.
CVE CVE-2001-0138, CVE-2001-0187
CVSS Base Score: 10.0