Multiple unspecified vulnerabilities in Shareaza before 2.3.1.0 have unknown impact and attack vectors related to "very important security fixes," possibly involving update notifications and a domain that is no longer controlled by the vendor.
https://exchange.xforce.ibmcloud.com/vulnerabilities/39484
http://www.securityfocus.com/bid/27171
http://sourceforge.net/project/shownotes.php?group_id=110672&release_id=565250