Windows Elevation of Privilege Vulnerability
CVE-2019-1129 is fixed in 18 products on 1 platform, first by KB4507450, released July 9, 2019. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 15, 2022, with known ransomware use. Patch Radar priority: Patch now.
<p>An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data.</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 take control of an affected system.</p> <p>The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1703 for 32-bit Systems | 15063.1928 | KB4507450 | Jul 9, 2019 |
| Windows 10 Version 1703 for x64-based Systems | 15063.1928 | KB4507450 | Jul 9, 2019 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.1268 | KB4507455 | Jul 9, 2019 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.1268 | KB4507455 | Jul 9, 2019 |
| Windows 10 Version 1709 for x64-based Systems | 16299.1268 | KB4507455 | Jul 9, 2019 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.885 | KB4507435 | Jul 9, 2019 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.885 | KB4507435 | Jul 9, 2019 |
| Windows 10 Version 1803 for x64-based Systems | 17134.885 | KB4507435 | Jul 9, 2019 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.615 | KB4507469 | Jul 9, 2019 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.615 | KB4507469 | Jul 9, 2019 |
| Windows 10 Version 1809 for x64-based Systems | 17763.615 | KB4507469 | Jul 9, 2019 |
| Windows 10 Version 1903 for 32-bit Systems | 18362.239 | KB4507453 | Jul 9, 2019 |
| Windows 10 Version 1903 for ARM64-based Systems | 18362.239 | KB4507453 | Jul 9, 2019 |
| Windows 10 Version 1903 for x64-based Systems | 18362.239 | KB4507453 | Jul 9, 2019 |
| Windows Server 2019 | 17763.615 | KB4507469 | Jul 9, 2019 |
| Windows Server 2019 (Server Core installation) | 17763.615 | KB4507469 | Jul 9, 2019 |
| Windows Server, version 1803 (Server Core Installation) | 17134.885 | KB4507435 | Jul 9, 2019 |
| Windows Server, version 1903 (Server Core installation) | 18362.239 | KB4507453 | Jul 9, 2019 |
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