Mail in Apple iPhone 1.1.1 allows remote user-assisted attackers to force the iPhone user to make calls to arbitrary telephone numbers via a "tel:" link, which does not prompt the user before dialing the number.
Safari in Apple iPhone 1.1.1 allows remote user-assisted attackers to trick the iPhone user into making calls to arbitrary telephone numbers via a crafted "tel:" link that causes iPhone to display a different number than the number that will be dialed.
WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, does not properly handle the interaction between International Domain Name (IDN) support and Unicode fonts, which allows remote attackers to create a URL containing "look-alike characters" (homographs) and possibly perform phishing attacks.