CVE-2021-41379
MediumActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
Windows Installer Elevation of Privilege Vulnerability
SeverityMedium
CVSS5.5
Exploit probability—
Product
Microsoft Windows
PublishedNov 10, 2021
First seenNov 10, 2021
Added to KEVMar 3, 2022
Weakness typeCWE-59Improper link resolution
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Mar 17, 2022Update
- microsoft windows_10_150710.0.10240.19119 or later
- microsoft windows_10_160710.0.14393.4770 or later
- microsoft windows_10_180910.0.17763.2300 or later
- microsoft windows_10_190910.0.18363.1916 or later
- microsoft windows_10_200410.0.19041.1348 or later
- microsoft windows_10_20h210.0.19042.1348 or later
- microsoft windows_10_21h110.0.19043.1348 or later
- microsoft windows_11_21h210.0.22000.318 or later
- microsoft windows_server_200410.0.19041.1348 or later
- microsoft windows_server_201610.0.14393.4770 or later
- microsoft windows_server_201910.0.17763.2300 or later
- microsoft windows_server_202210.0.20348.350 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1507 | v < 10.0.10240.19119 | 10.0.10240.19119 |
| microsoft windows_10_1607 | v < 10.0.14393.4770 | 10.0.14393.4770 |
| microsoft windows_10_1809 | v < 10.0.17763.2300 | 10.0.17763.2300 |
| microsoft windows_10_1909 | v < 10.0.18363.1916 | 10.0.18363.1916 |
| microsoft windows_10_2004 | v < 10.0.19041.1348 | 10.0.19041.1348 |
| microsoft windows_10_20h2 | v < 10.0.19042.1348 | 10.0.19042.1348 |
| microsoft windows_10_21h1 | v < 10.0.19043.1348 | 10.0.19043.1348 |
| microsoft windows_11_21h2 | v < 10.0.22000.318 | 10.0.22000.318 |
| microsoft windows_7 | No range specified | — |
| microsoft windows_8.1 | No range specified | — |
| microsoft windows_rt_8.1 | No range specified | — |
| microsoft windows_server_2004 | v < 10.0.19041.1348 | 10.0.19041.1348 |
| microsoft windows_server_2008 | No range specified, r2 | — |
| microsoft windows_server_2012 | No range specified, r2 | — |
| microsoft windows_server_2016 | v < 10.0.14393.4770 | 10.0.14393.4770 |
| microsoft windows_server_2019 | v < 10.0.17763.2300 | 10.0.17763.2300 |
| microsoft windows_server_2022 | v < 10.0.20348.350 | 10.0.20348.350 |
| microsoft windows_server_20h2 | v < 10.0.19042.1348 | 10.0.19042.1348 |
Check your version
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