Apple · Safari · CVE-2020-9947
**Name of the Vulnerable Software and Affected Versions**
watchOS versions prior to 7.0
iOS versions prior to 14.0
iPadOS versions prior to 14.0
iTunes for Windows versions prior to 12.10.9
iCloud for Windows versions prior to 11.5
tvOS versions prior to 14.0
Safari versions prior to 14.0
macOS Big Sur versions prior to 11.0.1
watchOS versions prior to 7.1
iOS versions prior to 14.2
iPadOS versions prior to 14.2
tvOS versions prior to 14.2
iTunes for Windows versions prior to 12.11
Safari versions prior to 14.0.1
**Description**
A use after free issue was addressed with improved memory management. Processing maliciously crafted web content may lead to arbitrary code execution. The issue is related to the WebKit module's memory usage after it has been freed, which can be exploited by a remote attacker using malicious web content.
**Recommendations**
For watchOS versions prior to 7.0, update to watchOS 7.0 or later.
For iOS versions prior to 14.0, update to iOS 14.0 or later.
For iPadOS versions prior to 14.0, update to iPadOS 14.0 or later.
For iTunes for Windows versions prior to 12.10.9, update to iTunes for Windows 12.10.9 or later.
For iCloud for Windows versions prior to 11.5, update to iCloud for Windows 11.5 or later.
For tvOS versions prior to 14.0, update to tvOS 14.0 or later.
For Safari versions prior to 14.0, update to Safari 14.0 or later.
For macOS Big Sur versions prior to 11.0.1, update to macOS Big Sur 11.0.1 or later.
For watchOS versions prior to 7.1, update to watchOS 7.1 or later.
For iOS versions prior to 14.2, update to iOS 14.2 or later.
For iPadOS versions prior to 14.2, update to iPadOS 14.2 or later.
For tvOS versions prior to 14.2, update to tvOS 14.2 or later.
For iTunes for Windows versions prior to 12.11, update to iTunes for Windows 12.11 or later.
For Safari versions prior to 14.0.1, update to Safari 14.0.1 or later.