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Vulnerability DatabaseCVE-2021-30818
CVE-2021-30818:
Apple Safari vulnerability analysis and mitigation
Overview
CVE-2021-30818 is a type confusion vulnerability discovered in WebKit that affects multiple Apple operating systems including iOS 14.8, iPadOS 14.8, tvOS 15, iOS 15, iPadOS 15, Safari 15, and watchOS 8. The vulnerability was discovered by Amar Menezes (@amarekano) of Zon8Research and was fixed in September 2021 (Apple Support, WebKit Advisory).
Technical details
The vulnerability is classified as a type confusion issue in WebKit that was addressed with improved state handling. It has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (NVD).
Impact
When successfully exploited, processing maliciously crafted web content may lead to arbitrary code execution on the affected device (Apple Support, WebKit Advisory).
Mitigation and workarounds
Apple addressed this vulnerability by releasing security updates across multiple platforms: iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, Safari 15, and watchOS 8. Users are advised to update to these versions or later to mitigate the risk (Apple Support).
Additional resources
Source: This report was generated using AI
Related Apple Safari vulnerabilities:
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