Khaled Mardam-bey Mirc 6.0

Buffer overflow in mIRC 6.0.2 and earlier allows remote attackers to execute arbitrary code via a long $asctime value.

mIRC DCC server protocol allows remote attackers to gain sensitive information such as alternate IRC nicknames via a "100 testing" message in a DCC connection request that cannot be ignored or canceled by the user, which may leak the alternate nickname in a response message.