A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. An application may be able to execute arbitrary code with kernel privileges.
https://support.apple.com/kb/HT212604
https://support.apple.com/en-us/HT212602
https://support.apple.com/en-us/HT212601
Source: Mitre, NVD
Published: 2021-09-08
Updated: 2022-02-11
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H