CVE-2018-8357

Microsoft Browser Elevation of Privilege Vulnerability

CVE-2018-8357 is fixed in 22 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
3.0
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0829
94th percentile

<p>An elevation of privilege vulnerability exists in Microsoft browsers allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system.</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>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.2430 KB4343887 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.2430 KB4343887 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 15063.1266 KB4343885 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 15063.1266 KB4343885 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 16299.611 KB4343897 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 16299.611 KB4343897 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 17134.228 KB4343909 Aug 14, 2018
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 17134.228 KB4343909 Aug 14, 2018
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.17946 KB4343892 Aug 14, 2018
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.17946 KB4343892 Aug 14, 2018
Internet Explorer 11 on Windows Server 2016 14393.2430 KB4343887 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 14393.2430 KB4343887 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 14393.2430 KB4343887 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems 15063.1266 KB4343885 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems 15063.1266 KB4343885 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems 16299.611 KB4343897 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems 16299.611 KB4343897 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems 17134.228 KB4343909 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems 17134.228 KB4343909 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 10240.17946 KB4343892 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 10240.17946 KB4343892 Aug 14, 2018
Microsoft Edge (EdgeHTML-based) on Windows Server 2016 14393.2430 KB4343887 Aug 14, 2018

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