mIRC long nickname buffer overflow

mirc-nickname-bo (8083) The risk level is classified as HighHigh Risk


mIRC is vulnerable to a buffer overflow in the handling of long nicknames. By sending a nickname of 200 bytes or more to a remote client connecting to the mIRC server, a remote attacker can overflow a buffer and execute arbitrary code on the victim?s system with elevated privileges.


Gain Access


Upgrade to the latest version of mIRC (6.0 or later), available from the mIRC Home page. See References.


Platforms Affected:

  • mIRC mIRC 5.91 and prior


Feb 02, 2002

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