Stack-based buffer overflow in the IActiveXTransfer.FileTransfer method in the SecureTransport FileTransfer ActiveX control in vcst_en.dll 1.0.0.5 in Tumbleweed SecureTransport Server before 4.6.1 Hotfix 20 allows remote attackers to execute arbitrary code via a long remoteFile parameter.

Cross-site scripting (XSS) vulnerability in emfadmin/statusView.do in Tumbleweed EMF Administration Module 6.2.2 Build 4123, and possibly other versions before 6.3.2, allows remote attackers to inject arbitrary web script or HTML via the (1) lineId and (2) sort parameters.

Multiple stack-based buffer overflows in Tumbleweed Email Firewall (EMF) allow remote attackers to execute arbitrary code via an email attachment with an LHA archive that contains a (1) file or (2) directory with a long LHA extended header, (3) an LHA archive in which the "temporary pathname" field for decompressed output is greater than 2 bytes, or (4) an LHA archive with a long filename.

Multiple unspecified vulnerabilities in Tumbleweed MailGate Email Firewall (EMF) 6.x allow remote attackers to (1) trigger temporarily incorrect processing of an e-mail message under "extremely heavy loads" and (2) cause an "increased number of missed spam" during "spam outbreaks."

The installation of Tumbleweed Messaging Management System (MMS) 4.6 and earlier (formerly Worldtalk Worldsecure) creates a default account "sa" with no password.