Description
<p>An information disclosure vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system (low-integrity to medium-integrity).</p>
<p>This vulnerability by itself does not allow arbitrary code execution; however, it could allow arbitrary code to be run if the attacker uses it in combination with another vulnerability (such as a remote code execution vulnerability or another elevation of privilege vulnerability) that is capable of leveraging the elevated privileges when code execution is attempted.</p>
<p>The security update addresses the vulnerability by ensuring splwow64.exe properly handles these calls.</p>
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1803 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1909 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1909 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server version 2004 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1507 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1607 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2016 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 8.1 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2012 | 6.2.0 – < publication | publication |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.0 – < publication | publication |