An elevation of privilege vulnerability exists when Windows Modules Installer Service improperly handles class object members.A locally authenticated attacker could run arbitrary code with elevated system privileges, aka 'Windows Modules Installer Service Elevation of Privilege Vulnerability'.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1254
Source: MITRE
Published: 2020-06-09
Updated: 2021-07-21
Type: CWE-269
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH