A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.
http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429
Source: MITRE
Published: 2019-11-12
Updated: 2020-08-24
Type: CWE-787
Base Score: 7.6
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 4.9
Severity: HIGH
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.6
Severity: HIGH