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.
Improper Control of Generation of Code The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.