CVE-2021-30726 Information

Description

A malicious application may be able to execute arbitrary code with kernel privileges. This issue is fixed in macOS Big Sur 11.4 Security Update 2021-003 Catalina Security Update 2021-004 Mojave. An out-of-bounds write issue was addressed with improved bounds checking.

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/HT212530 https://support.apple.com/en-us/HT212531 https://support.apple.com/en-us/HT212529

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