Multiple directory traversal vulnerabilities in (1) EPSTIMAP4S.EXE and (2) SPA-IMAP4S.EXE in the IMAP service in E-Post Mail 4.05 and SPA-PRO Mail 4.05 allow remote attackers to (a) list arbitrary directories or cause a denial of service via the LIST command; or create arbitrary files via the (b) APPEND, (c) COPY, or (d) RENAME commands.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24336
http://www.vupen.com/english/advisories/2006/0318
http://www.securityfocus.com/bid/16379