Format string vulnerability in the Log_Flush function in Weex 2.6.1.5, 2.6.1, and possibly other versions allows remote FTP servers to execute arbitrary code via format strings in filenames.
http://www.securityfocus.com/bid/14999
http://www.gentoo.org/security/en/glsa/glsa-200510-09.xml
http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/86833
http://www.debian.org/security/2005/dsa-855
http://secunia.com/advisories/17112