CVE-2021-41379
HighPublished
Windows Installer Elevation of Privilege Vulnerability
- Published
- Nov 10, 2021
- Updated
- Oct 21, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Mar 3, 2022
Primary CVSS
7.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H19.5%
Moderate · next 30 days
- Percentile
- 97.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Windows Installer Elevation of Privilege Vulnerability
Sources
1- shakeitoffPoC
Windows MSI Installer LPE (CVE-2021-43883)
Responsible use
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