About the security content of Xcode 12.0

This document describes the security content of Xcode 12.0.

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Xcode 12.0

Released September 16, 2020

IDE Device Support

Available for: macOS Catalina 10.15.4 and later

Impact: An attacker in a privileged network position may be able to execute arbitrary code on a paired device during a debug session over the network

Description: This issue was addressed by encrypting communications over the network to devices running iOS 14, iPadOS 14, tvOS 14, and watchOS 7.

CVE-2020-9992: Dany Lisiansky (@DanyL931), Nikias Bassen of Zimperium zLabs

Entry updated September 21, 2020

Additional recognition


We would like to acknowledge Linus Henze (pinauten.de) for their assistance.


We would like to acknowledge Linus Henze (pinauten.de) for their assistance.

Entry added November 12, 2020


We would like to acknowledge Brandon Azad of Google Project Zero for their assistance.

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