The issue was addressed with improved deletion. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A local user may be able to discover a user’s deleted messages.
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: 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