A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. An application may be able to gain elevated privileges.
https://support.apple.com/kb/HT211100
Source: Mitre, NVD
Published: 2020-10-22
Updated: 2021-07-21
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High