CVE-2021-43883
Windows Installer Elevation of Privilege Vulnerability
CVE-2021-43883 is fixed in 46 products on 1 platform, first by KB5008207, released December 14, 2021. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
UrgentPublicly disclosed
CVSS
7.8
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1215
96th percentile
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.4825 | KB5008207 | Dec 14, 2021 |
| Windows 10 Version 1607 for x64-based Systems | 14393.4825 | KB5008207 | Dec 14, 2021 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.2366 | KB5008218 | Dec 14, 2021 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.2366 | KB5008218 | Dec 14, 2021 |
| Windows 10 Version 1809 for x64-based Systems | 17763.2366 | KB5008218 | Dec 14, 2021 |
| Windows 10 Version 1909 for 32-bit Systems | 18363.1977 | KB5008206 | Dec 14, 2021 |
| Windows 10 Version 1909 for ARM64-based Systems | 18363.1977 | KB5008206 | Dec 14, 2021 |
| Windows 10 Version 1909 for x64-based Systems | 18363.1977 | KB5008206 | Dec 14, 2021 |
| Windows 10 Version 2004 for 32-bit Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 2004 for ARM64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 2004 for x64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 20H2 for 32-bit Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 20H2 for ARM64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H1 for 32-bit Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H1 for ARM64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H1 for x64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H2 for 32-bit Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5008212 | Dec 14, 2021 | |
| Windows 10 for 32-bit Systems | 10240.19145 | KB5008230 | Dec 14, 2021 |
| Windows 10 for x64-based Systems | 10240.19145 | KB5008230 | Dec 14, 2021 |
| Windows 11 version 21H2 for ARM64-based Systems | 22000.376 | KB5008215 | Dec 14, 2021 |
| Windows 11 version 21H2 for x64-based Systems | 22000.376 | KB5008215 | Dec 14, 2021 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB5008282 | Dec 14, 2021 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB5008244 | Dec 14, 2021 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB5008282 | Dec 14, 2021 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB5008244 | Dec 14, 2021 | |
| Windows 8.1 for 32-bit systems | KB5008285 | Dec 14, 2021 | |
| Windows 8.1 for 32-bit systems | KB5008263 | Dec 14, 2021 | |
| Windows 8.1 for x64-based systems | KB5008285 | Dec 14, 2021 | |
| Windows 8.1 for x64-based systems | KB5008263 | Dec 14, 2021 | |
| Windows RT 8.1 | KB5008263 | Dec 14, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5008282 | Dec 14, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5008244 | Dec 14, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5008282 | Dec 14, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5008244 | Dec 14, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5008274 | Dec 14, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5008271 | Dec 14, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5008274 | Dec 14, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5008271 | Dec 14, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5008274 | Dec 14, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5008271 | Dec 14, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5008274 | Dec 14, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5008271 | Dec 14, 2021 | |
| Windows Server 2012 | KB5008255 | Dec 14, 2021 | |
| Windows Server 2012 | KB5008277 | Dec 14, 2021 | |
| Windows Server 2012 (Server Core installation) | KB5008255 | Dec 14, 2021 | |
| Windows Server 2012 (Server Core installation) | KB5008277 | Dec 14, 2021 | |
| Windows Server 2012 R2 | KB5008285 | Dec 14, 2021 | |
| Windows Server 2012 R2 | KB5008263 | Dec 14, 2021 | |
| Windows Server 2012 R2 (Server Core installation) | KB5008285 | Dec 14, 2021 | |
| Windows Server 2012 R2 (Server Core installation) | KB5008263 | Dec 14, 2021 | |
| Windows Server 2016 | 14393.4825 | KB5008207 | Dec 14, 2021 |
| Windows Server 2016 (Server Core installation) | 14393.4825 | KB5008207 | Dec 14, 2021 |
| Windows Server 2019 | 17763.2366 | KB5008218 | Dec 14, 2021 |
| Windows Server 2019 (Server Core installation) | 17763.2366 | KB5008218 | Dec 14, 2021 |
| Windows Server 2022 | 20348.405 | KB5008223 | Dec 14, 2021 |
| Windows Server 2022 (Server Core installation) | 20348.405 | KB5008223 | Dec 14, 2021 |
| Windows Server, version 2004 (Server Core installation) | KB5008212 | Dec 14, 2021 | |
| Windows Server, version 20H2 (Server Core Installation) | KB5008212 | Dec 14, 2021 | |
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