PT-2021-4451

CVE-2021-30665

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Published

2021-05-03

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Updated

2026-10-31

Description by

CVSS 3.1
8.8
High
MetricsAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions watchOS versions prior to 7.4.1 iOS versions prior to 14.5.1 iPadOS versions prior to 14.5.1 tvOS versions prior to 14.6 iOS versions prior to 12.5.3 macOS Big Sur versions prior to 11.3.1
Description A memory corruption issue was addressed with improved state management. 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.
Recommendations For watchOS versions prior to 7.4.1, update to watchOS 7.4.1 or later. For iOS versions prior to 14.5.1, update to iOS 14.5.1 or later. For iPadOS versions prior to 14.5.1, update to iPadOS 14.5.1 or later. For tvOS versions prior to 14.6, update to tvOS 14.6 or later. For iOS versions prior to 12.5.3, update to iOS 12.5.3 or later. For macOS Big Sur versions prior to 11.3.1, update to macOS Big Sur 11.3.1 or later.
Exploitability
Fix
Impacts
Vendors
Affected products
Related identifiers
ALSA-2021:4381
CESA-2021_4381
CLEANSTART-2024-IU51109
DSA-4945-1
ELSA-2021-4381
MGASA-2021-0400
OPENSUSE-SU-2021:1101-1
OPENSUSE-SU-2021_1101-1
OPENSUSE-SU-2021:2598-1
OPENSUSE-SU-2021_2598-1
OPENSUSE-SU-2024:11506-1
RHSA-2021:4381
RHSA-2021_4381
RHSA-2025:10364
RLSA-2021:4381
RLSA-2021_4381
SUSE-SU-2021:2598-1
SUSE-SU-2021_2598-1
SUSE-SU-2021:2600-1
SUSE-SU-2021_2600-1
SUSE-SU-2021:2762-1
SUSE-SU-2021_2762-1
USN-5024-1
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