CVE-2021-43883

HIGH

Windows Installer - Privilege Escalation

Title source: llm
STIX 2.1

Description

Windows Installer Elevation of Privilege Vulnerability

Exploits (1)

nomisec WORKING POC 79 stars
by jbaines-r7 · poc
https://github.com/jbaines-r7/shakeitoff

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0912
EPSS Percentile 92.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

Status published
Products (20)
microsoft/windows_10 (2 CPE variants)
microsoft/windows_10 20h2 (3 CPE variants)
microsoft/windows_10 21h1 (3 CPE variants)
microsoft/windows_10 21h2 (3 CPE variants)
microsoft/windows_10 1607 (2 CPE variants)
microsoft/windows_10 1809 (3 CPE variants)
microsoft/windows_10 1909 (3 CPE variants)
microsoft/windows_10 2004 (3 CPE variants)
microsoft/windows_11 (2 CPE variants)
microsoft/windows_7 (2 CPE variants)
... and 10 more
Published Dec 15, 2021
Tracked Since Feb 18, 2026