CVE-2021-30661

Published: Sep 8, 2021

Modified: Oct 21, 2025

PUBLISHED

Description

A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

Vendor	Product	Versions
Apple	iOS and iPadOS	affected `unspecified - < 14.5`
Apple	Safari	affected `unspecified - < 14.1`
Apple	tvOS	affected `unspecified - < 14.5`
Apple	watchOS	affected `unspecified - < 7.4`
Apple	macOS	affected `unspecified - < 11.3`
Apple	macOS	affected `unspecified - < 12.5`