CVE-2021-30869 Information

Description

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5 iOS 14.4 and iPadOS 14.4 macOS Big Sur 11.2 Security Update 2021-001 Catalina Security Update 2021-001 Mojave Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212824 https://support.apple.com/en-us/HT212825 https://support.apple.com/en-us/HT212146

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8