For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
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Apple security documents reference vulnerabilities by CVE-ID when possible.
watchOS 3
Released September 13, 2016
Audio
Available for: All Apple Watch models
Impact: A remote attacker may be able to execute arbitrary code
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4702: YoungJin Yoon, MinSik Shin, HoJae Han, Sunghyun Park, and Taekyoung Kwon of Information Security Lab, Yonsei University
Entry added September 20, 2016
CFNetwork
Available for: All Apple Watch models
Impact: Processing maliciously crafted web content may compromise user information
Description: An input validation issue existed in the parsing of the set-cookie header. This issue was addressed through improved validation checking.
CVE-2016-4708: Dawid Czagan of Silesia Security Lab
Entry added September 20, 2016
CoreCrypto
Available for: All Apple Watch models
Impact: An application may be able to execute arbitrary code
Description: An out-of-bounds write issue was addressed by removing the vulnerable code.
CVE-2016-4712: Gergo Koteles
Entry added September 20, 2016
FontParser
Available for: All Apple Watch models
Impact: Processing a maliciously crafted font may result in the disclosure of process memory
Description: A buffer overflow existed in the handling of font files. This issue was addressed through improved bounds checking.
CVE-2016-4718: Apple
Entry added September 20, 2016
GeoServices
Available for: All Apple Watch models
Impact: An application may be able to read sensitive location information
Description: A permissions issue existed in PlaceData. This issue was addressed through improved permission validation.
CVE-2016-4719: Razvan Deaconescu, Mihai Chiroiu (University POLITEHNICA of Bucharest); Luke Deshotels, William Enck (North Carolina State University); Lucas Vincenzo Davi, Ahmad-Reza Sadeghi (TU Darmstadt)
IOAcceleratorFamily
Available for: All Apple Watch models
Impact: Processing maliciously crafted web content may result in the disclosure of process memory
Description: A memory corruption issue was addressed through improved input validation.
CVE-2016-4725: Rodger Combs of Plex, Inc.
Entry added September 20, 2016
IOAcceleratorFamily
Available for: All Apple Watch models
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4726: An anonymous researcher
Entry added September 20, 2016
Kernel
Available for: All Apple Watch models
Impact: A remote attacker may be able to cause a denial of service
Description: A lock handling issue was addressed through improved lock handling.
CVE-2016-4772: Marc Heuse of mh-sec
Entry added September 20, 2016
Kernel
Available for: All Apple Watch models
Impact: An application may be able to determine kernel memory layout
Description: Multiple out-of-bounds read issues existed that led to the disclosure of kernel memory. These were addressed through improved input validation.
CVE-2016-4773: Brandon Azad
CVE-2016-4774: Brandon Azad
CVE-2016-4776: Brandon Azad
Entry added September 20, 2016
Kernel
Available for: All Apple Watch models
Impact: A local user may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4775: Brandon Azad
Entry added September 20, 2016
Kernel
Available for: All Apple Watch models
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: An untrusted pointer dereference was addressed by removing the affected code.
CVE-2016-4777: Lufeng Li of Qihoo 360 Vulcan Team
Entry added September 20, 2016
Kernel
Available for: All Apple Watch models
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: Multiple memory corruption issues were addressed through improved memory handling.
CVE-2016-4778: CESG
Entry added September 20, 2016
libxml2
Available for: All Apple Watch models
Impact: Multiple issues in libxml2, the most significant of which may lead to unexpected application termination or arbitrary code execution
Description: Multiple memory corruption issues were addressed through improved memory handling.
CVE-2016-4658: Nick Wellnhofer
CVE-2016-5131: Nick Wellnhofer
Entry added September 20, 2016
libxslt
Available for: All Apple Watch models
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4738: Nick Wellnhofer
Entry added September 20, 2016
Security
Available for: All Apple Watch models
Impact: A malicious application may be able to execute arbitrary code with system privileges
Description: A validation issue existed in signed disk images. This issue was addressed through improved size validation.
CVE-2016-4753: Mark Mentovai of Google Inc.
Entry added September 20, 2016
WebKit
Available for: All Apple Watch models
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed through improved memory handling.
CVE-2016-4737: Apple
Entry added September 20, 2016
WiFi Manager
Available for: All Apple Watch models
Impact: App extensions may obtain internet access
Description: Multiple policy enforcement issues with WiFi sharing. These issues were addressed with improved entitlement checks.
CVE-2016-7699: Proteas of Qihoo 360 Nirvan Team
Entry added May 17, 2017