ICQ 7 does not verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a crafted file that is fetched through an automatic-update mechanism.

toolbaru.dll in ICQ Toolbar (ICQToolbar) 2.3 allows remote attackers to cause a denial of service (toolbar crash) via a long argument to the (1) RequestURL, (2) GetPropertyById, or (3) SetPropertyById method, different vectors than CVE-2008-7135.

toolbaru.dll in ICQ Toolbar (ICQToolbar) 2.3 allows remote attackers to cause a denial of service (toolbar crash) via a long argument to the IsChecked method, a different vector than CVE-2008-7136.

Stack-based buffer overflow in the URL Search Hook (ICQToolBar.dll) in ICQ 6.5 allows remote attackers to cause a denial of service (persistent crash) and possibly execute arbitrary code via an Internet shortcut .URL file containing a long URL parameter, which triggers a crash when browsing a folder that contains this file.

Heap-based buffer overflow in the boxelyRenderer module in the Personal Status Manager feature in ICQ 6.0 build 6043 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted personal status message.

Format string vulnerability in the embedded Internet Explorer component for Mirabilis ICQ 6 build 6043 allows remote servers to execute arbitrary code or cause a denial of service (crash) via unspecified vectors related to HTML code generation.

ICQwebmail client for ICQ 2000A creates a world readable temporary file during login and does not delete it, which allows local users to obtain sensitive information.

ICQ ActiveList Server allows remote attackers to cause a denial of service (crash) via malformed packets to the server's UDP port.