Apple watchOS vulnerabilities

CVE-2018-4373 [HIGH] CWE-119 CVE-2018-4373: Multiple memory corruption issues were addressed with improved memory handling. This issue affected Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.

CVE-2018-4284 [HIGH] CWE-704 CVE-2018-4284: A type confusion issue was addressed with improved memory handling. This issue affected versions pri A type confusion issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.

CVE-2021-30854 [HIGH] CVE-2021-30854: A logic issue was addressed with improved state management. This issue is fixed in tvOS 15, watchOS A logic issue was addressed with improved state management. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. A sandboxed process may be able to circumvent sandbox restrictions.

CVE-2016-1840 [HIGH] CWE-119 CVE-2016-1840: Heap-based buffer overflow in the xmlFAParsePosCharGroup function in libxml2 before 2.9.4, as used i Heap-based buffer overflow in the xmlFAParsePosCharGroup function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.

CVE-2021-30677 [HIGH] CVE-2021-30677: This issue was addressed with improved environment sanitization. This issue is fixed in tvOS 14.6, i This issue was addressed with improved environment sanitization. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. A malicious application may be able to break out of its sandbox.

CVE-2025-43329 [HIGH] CWE-862 CVE-2025-43329: A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26 and iP A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, watchOS 26. An app may be able to break out of its sandbox.

CVE-2021-1758 [HIGH] CWE-125 CVE-2021-1758: An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution.

CVE-2024-23278 [HIGH] CWE-94 CVE-2024-23278: The issue was addressed with improved checks. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, i The issue was addressed with improved checks. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, iOS 17.4 and iPadOS 17.4, macOS Sonoma 14.4, macOS Ventura 13.6.5, tvOS 17.4, watchOS 10.4. An app may be able to break out of its sandbox.

CVE-2015-5922 [CRITICAL] CVE-2015-5922: Unspecified vulnerability in International Components for Unicode (ICU) before 53.1.0, as used in Ap Unspecified vulnerability in International Components for Unicode (ICU) before 53.1.0, as used in Apple OS X before 10.11 and watchOS before 2, has unknown impact and attack vectors.

CVE-2026-28973 [HIGH] CWE-190 CVE-2026-28973: An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 an An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, watchOS 26.6. A malicious app may be able to break out of its sandbox.

CVE-2017-5029 [HIGH] CVE-2017-5029: watchOS 3.2 Apple Security Update: About the security content of watchOS 3.2 Product: watchOS Version: 3.2 CVE: CVE-2017-5029 Component: CVE-2017-2441 Impact: Multiple vulnerabilities in libxslt Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2021-30949 [HIGH] CWE-787 CVE-2021-30949: A memory corruption issue was addressed with improved state management. This issue is fixed in macOS A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

CVE-2021-30785 [HIGH] CWE-120 CVE-2021-30785: A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macO A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Processing a maliciously crafted image may lead to arbitrary code execution.

CVE-2025-24180 [HIGH] CWE-601 CVE-2025-24180: The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, iOS 18.4 The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, watchOS 11.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.

CVE-2020-27910 [HIGH] CWE-125 CVE-2020-27910: An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted audio file may lead to arbitrary code execution.

CVE-2021-30916 [HIGH] CWE-787 CVE-2021-30916: A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CVE-2021-30740 [HIGH] CVE-2021-30740: A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvO A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.

CVE-2021-30759 [HIGH] CWE-787 CVE-2021-30759: A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macO A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution.

CVE-2024-23208 [HIGH] CWE-94 CVE-2024-23208: The issue was addressed with improved memory handling. This issue is fixed in iOS 17.3 and iPadOS 17 The issue was addressed with improved memory handling. This issue is fixed in iOS 17.3 and iPadOS 17.3, macOS Sonoma 14.3, tvOS 17.3, watchOS 10.3. An app may be able to execute arbitrary code with kernel privileges.

CVE-2020-27918 [HIGH] CWE-416 CVE-2020-27918: A use after free issue was addressed with improved memory management. This issue is fixed in macOS B A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.