CVE-2018-8339
Windows Installer Elevation of Privilege Vulnerability
CVE-2018-8339 is fixed in 31 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.4
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0116
67th percentile
<p>An elevation of privilege vulnerability exists in the Windows Installer when the Windows Installer fails to properly sanitize input leading to an insecure library loading behavior.</p> <p>A locally authenticated attacker could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>The security update addresses the vulnerability by correcting the input sanitization error to preclude unintended elevation.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows 10 Version 1607 for x64-based Systems | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.1266 | KB4343885 | Aug 14, 2018 |
| Windows 10 Version 1703 for x64-based Systems | 15063.1266 | KB4343885 | Aug 14, 2018 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.611 | KB4343897 | Aug 14, 2018 |
| Windows 10 Version 1709 for x64-based Systems | 16299.611 | KB4343897 | Aug 14, 2018 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.228 | KB4343909 | Aug 14, 2018 |
| Windows 10 Version 1803 for x64-based Systems | 17134.228 | KB4343909 | Aug 14, 2018 |
| Windows 10 for 32-bit Systems | 10240.17946 | KB4343892 | Aug 14, 2018 |
| Windows 10 for x64-based Systems | 10240.17946 | KB4343892 | Aug 14, 2018 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4343899 | Aug 14, 2018 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4343900 | Aug 14, 2018 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4343899 | Aug 14, 2018 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4343900 | Aug 14, 2018 | |
| Windows 8.1 for 32-bit systems | KB4343888 | Aug 14, 2018 | |
| Windows 8.1 for 32-bit systems | KB4343898 | Aug 14, 2018 | |
| Windows 8.1 for x64-based systems | KB4343888 | Aug 14, 2018 | |
| Windows 8.1 for x64-based systems | KB4343898 | Aug 14, 2018 | |
| Windows RT 8.1 | KB4343898 | Aug 14, 2018 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4343899 | Aug 14, 2018 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4343900 | Aug 14, 2018 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4343899 | Aug 14, 2018 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4343900 | Aug 14, 2018 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4343899 | Aug 14, 2018 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4343900 | Aug 14, 2018 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4340937 | Aug 14, 2018 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4340937 | Aug 14, 2018 | |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | KB4340937 | Aug 14, 2018 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4340937 | Aug 14, 2018 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4340937 | Aug 14, 2018 | |
| Windows Server 2012 | KB4343896 | Aug 14, 2018 | |
| Windows Server 2012 | KB4343901 | Aug 14, 2018 | |
| Windows Server 2012 (Server Core installation) | KB4343896 | Aug 14, 2018 | |
| Windows Server 2012 (Server Core installation) | KB4343901 | Aug 14, 2018 | |
| Windows Server 2012 R2 | KB4343888 | Aug 14, 2018 | |
| Windows Server 2012 R2 | KB4343898 | Aug 14, 2018 | |
| Windows Server 2012 R2 (Server Core installation) | KB4343888 | Aug 14, 2018 | |
| Windows Server 2012 R2 (Server Core installation) | KB4343898 | Aug 14, 2018 | |
| Windows Server 2016 | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows Server 2016 (Server Core installation) | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows Server, version 1709 (Server Core Installation) | 16299.611 | KB4343897 | Aug 14, 2018 |
| Windows Server, version 1803 (Server Core Installation) | 17134.228 | KB4343909 | Aug 14, 2018 |