CVE-2020-1027
Windows Kernel Elevation of Privilege Vulnerability
CVE-2020-1027 is fixed in 41 products on 1 platform, first by KB4550929, released April 14, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on May 23, 2022. Patch Radar priority: Patch now.
Patch nowCISA KEV
CVSS
7.8
Important
Exploitation
Exploited
Reported by the vendor
CISA KEV
May 23, 2022
Federal due date Jun 13, 2022
EPSS
0.0472
91st percentile
<p>An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.</p> <p>To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.</p> <p>The security update addresses the vulnerability by ensuring the Windows Kernel properly handles objects in memory.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows 10 Version 1607 for x64-based Systems | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1709 for x64-based Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1803 for x64-based Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1809 for x64-based Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1903 for 32-bit Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1903 for ARM64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1903 for x64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for 32-bit Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for ARM64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for x64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 for 32-bit Systems | 10240.18545 | KB4550930 | Apr 14, 2020 |
| Windows 10 for x64-based Systems | 10240.18545 | KB4550930 | Apr 14, 2020 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows 8.1 for 32-bit systems | KB4550961 | Apr 14, 2020 | |
| Windows 8.1 for 32-bit systems | KB4550970 | Apr 14, 2020 | |
| Windows 8.1 for x64-based systems | KB4550961 | Apr 14, 2020 | |
| Windows 8.1 for x64-based systems | KB4550970 | Apr 14, 2020 | |
| Windows RT 8.1 | KB4550961 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4550965 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4550964 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4550951 | Apr 14, 2020 | |
| Windows Server 2012 | KB4550917 | Apr 14, 2020 | |
| Windows Server 2012 | KB4550971 | Apr 14, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4550917 | Apr 14, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4550971 | Apr 14, 2020 | |
| Windows Server 2012 R2 | KB4550961 | Apr 14, 2020 | |
| Windows Server 2012 R2 | KB4550970 | Apr 14, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4550961 | Apr 14, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4550970 | Apr 14, 2020 | |
| Windows Server 2016 | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows Server 2016 (Server Core installation) | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows Server 2019 | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows Server 2019 (Server Core installation) | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows Server, version 1803 (Server Core Installation) | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows Server, version 1903 (Server Core installation) | KB4549951 | Apr 14, 2020 | |
| Windows Server, version 1909 (Server Core installation) | KB4549951 | Apr 14, 2020 | |