CVE-2020-16887
Windows Network Connections Service Elevation of Privilege Vulnerability
CVE-2020-16887 is fixed in 44 products on 1 platform, first by KB4580346, released October 13, 2020. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0092
60th percentile
<p>An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service 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 Network Connections Service properly handles objects in memory.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows 10 Version 1607 for x64-based Systems | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Windows 10 Version 1709 for x64-based Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Windows 10 Version 1803 for x64-based Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows 10 Version 1809 for x64-based Systems | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows 10 Version 1903 for 32-bit Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1903 for ARM64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1903 for x64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1909 for 32-bit Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1909 for ARM64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1909 for x64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 2004 for 32-bit Systems | 19041.572 | KB4579311 | Oct 13, 2020 |
| Windows 10 Version 2004 for ARM64-based Systems | 19041.572 | KB4579311 | Oct 13, 2020 |
| Windows 10 Version 2004 for x64-based Systems | 19041.572 | KB4579311 | Oct 13, 2020 |
| Windows 10 for 32-bit Systems | 10240.18725 | KB4580327 | Oct 13, 2020 |
| Windows 10 for x64-based Systems | 10240.18725 | KB4580327 | Oct 13, 2020 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4580345 | Oct 13, 2020 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4580387 | Oct 13, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4580345 | Oct 13, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4580387 | Oct 13, 2020 | |
| Windows 8.1 for 32-bit systems | KB4580358 | Oct 13, 2020 | |
| Windows 8.1 for 32-bit systems | KB4580347 | Oct 13, 2020 | |
| Windows 8.1 for x64-based systems | KB4580358 | Oct 13, 2020 | |
| Windows 8.1 for x64-based systems | KB4580347 | Oct 13, 2020 | |
| Windows RT 8.1 | KB4580347 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580345 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580387 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580345 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580387 | Oct 13, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4580385 | Oct 13, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4580385 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580385 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4580385 | Oct 13, 2020 | |
| Windows Server 2012 | KB4580382 | Oct 13, 2020 | |
| Windows Server 2012 | KB4580353 | Oct 13, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4580382 | Oct 13, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4580353 | Oct 13, 2020 | |
| Windows Server 2012 R2 | KB4580358 | Oct 13, 2020 | |
| Windows Server 2012 R2 | KB4580347 | Oct 13, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4580358 | Oct 13, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4580347 | Oct 13, 2020 | |
| Windows Server 2016 | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows Server 2016 (Server Core installation) | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows Server 2019 | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows Server 2019 (Server Core installation) | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows Server, version 1903 (Server Core installation) | KB4577671 | Oct 13, 2020 | |
| Windows Server, version 1909 (Server Core installation) | KB4577671 | Oct 13, 2020 | |
| Windows Server, version 2004 (Server Core installation) | 19041.572 | KB4579311 | Oct 13, 2020 |
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