Buffer overflow in the Visnetic anti-virus plugin in Kerio MailServer before 6.5.0 might allow remote attackers to execute arbitrary code via unspecified vectors.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2008-0865
http://www.vupen.com/english/advisories/2008/0594
http://www.securitytracker.com/id?1019428
http://www.securityfocus.com/bid/27868