This issue was addressed with improved checks. This issue is fixed in iOS 14.0 and iPadOS 14.0, watchOS 7.0. The screen lock may not engage after the specified time period.
https://support.apple.com/HT211850
https://support.apple.com/HT211844
http://seclists.org/fulldisclosure/2020/Nov/22
http://seclists.org/fulldisclosure/2020/Nov/20
Source: Mitre, NVD
Published: 2020-10-16
Updated: 2023-01-09
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 6.8
Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H