A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. A malicious application may be able to determine kernel memory layout.
http://seclists.org/fulldisclosure/2020/Dec/32
http://seclists.org/fulldisclosure/2020/Dec/26
https://support.apple.com/kb/HT212011
https://support.apple.com/en-us/HT211931
Source: Mitre, NVD
Published: 2020-12-08
Updated: 2022-10-14
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
EPSS: 0.00159