CVE-2021-30734

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to arbitrary code execution.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
AppleiOS and iPadOS>= unspecified, < 14.6
ApplemacOS>= unspecified, < 11.4
ApplemacOS>= unspecified, < 14.6
ApplemacOS>= unspecified, < 7.5
ApplemacOS>= unspecified, < 14.1

References

Timeline

Published
Sep 8, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-30734: High severity, CVSS 8.8 | Vulnix