CVE-2002-2075

ICQ 2001a and 2002b allows remote attackers to cause a denial of service (memory consumption and hang) via a contact message with a large contacts number.

CVE-2002-1743

AOL ICQ 2002a Build 3722 allows remote attackers to cause a denial of service (crash) via a malformed .hpf file.

CVE-2005-3433

Buffer overflow in Mirabilis ICQ 2003a allows user-assisted attackers to execute arbitrary code by convincing a user to enter long strings into the First Name and Last Name fields.