CVE-2021-30859

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-843

Affected software

VendorProductVersions
ApplemacOS>= unspecified, < 11.6
ApplemacOS>= unspecified, < 2021
ApplemacOS>= unspecified, < 14.8

References

Timeline

Published
Aug 24, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-30859: High severity, CVSS 7.8 | Vulnix