Format string vulnerability in the IMAP4rev1 server in Alt-N MDaemon 8.1.1 and possibly 8.1.4 allows remote attackers to cause a denial of service (CPU consumption) by creating and then listing folders whose names contain format string specifiers.

Buffer overflow in Alt-N MDaemon, possibly 9.0.1 and earlier, allows remote attackers to execute arbitrary code via a long A0001 argument that begins with a '"' (double quote).

Multiple heap-based buffer overflows in the POP3 server in Alt-N Technologies MDaemon before 9.0.6 allow remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via long strings that contain '@' characters in the (1) USER and (2) APOP commands.

MDaemon POP server 6.0.7 and earlier allows remote authenticated users to cause a denial of service (crash) via a (1) DELE or (2) UIDL with a negative number.

Race condition in MDaemon 2.8.5.0 POP server allows local users to cause a denial of service by entering a UIDL command and quickly exiting the server.

WorldClient email client in MDaemon 2.8 includes the session ID in the referer field of an HTTP request when the user clicks on a URL, which allows the visited web site to hijack the session ID and read the user's email.

Heap overflow in Worldclient in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long URL.

Heap overflow in WebConfig in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long URL.