Multiple cross-site scripting (XSS) vulnerabilities in the History Window implementation in Kadu 0.9.0 through 0.11.0 allow remote attackers to inject arbitrary web script or HTML via a crafted (1) SMS message, (2) presence message, or (3) status description.
Multiple integer overflows in libgadu, as used in Kopete in KDE 3.2.3 to 3.4.1, ekg before 1.6rc3, GNU Gadu, CenterICQ, Kadu, and other packages, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an incoming message.