Windows Elevation of Privilege Vulnerability
CVE-2020-16877 is fixed in 12 products on 1 platform, first by KB4577671, released October 13, 2020. It is not reported as exploited. Patch Radar priority: High.
<p>An elevation of privilege vulnerability exists when Microsoft Windows improperly handles reparse points. An attacker who successfully exploited this vulnerability could overwrite or delete a targeted file that would normally require elevated permissions.</p> <p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and overwrite or delete files.</p> <p>The security update addresses the vulnerability by correcting how Windows handles reparse points.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| 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 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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