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Apple iPhone Unauthorized tel: Initiation Vulnerability

Apple iPhone is prone to a vulnerability resulting in unauthorized phone calls.

This issue affects the phone's Safari browser.

Attackers may exploit this issue to initiate unauthorized telephone calls to arbitrary phone numbers. Confirmation displayed to the user may indicate a different telephone number than the one that was actually dialed.

NOTE: This issue was initially disclosed along with several other issues in BID 25834 (Apple iPhone 1.1.1 Update Multiple Security Vulnerabilities). Each issue has been assigned its own BID to better document the details.

Versions prior to iPhone 1.1.1 are vulnerable.