A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A malicious application may be able to elevate privileges.
https://support.apple.com/en-us/HT211931
https://support.apple.com/en-us/HT211850
http://seclists.org/fulldisclosure/2020/Dec/32
Source: Mitre, NVD
Published: 2020-12-08
Updated: 2024-11-21
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High