CVE-2020-1567

MSHTML Engine Remote Code Execution Vulnerability

CVE-2020-1567 is fixed in 34 products on 1 platform, first by KB4571694, released August 11, 2020. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
7.5
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0367
89th percentile

<p>A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.</p> <p>An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.</p> <p>The security update addresses the vulnerability by modifying how MSHTML engine validates input.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.3866 KB4571694 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.3866 KB4571694 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 16299.2045 KB4571741 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems 16299.2045 KB4571741 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 16299.2045 KB4571741 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 17134.1667 KB4571709 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems 17134.1667 KB4571709 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 17134.1667 KB4571709 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems 17763.1397 KB4565349 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems 17763.1397 KB4565349 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems 17763.1397 KB4565349 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems KB4565351 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 2004 for 32-bit Systems 19041.450 KB4566782 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 2004 for ARM64-based Systems 19041.450 KB4566782 Aug 11, 2020
Internet Explorer 11 on Windows 10 Version 2004 for x64-based Systems 19041.450 KB4566782 Aug 11, 2020
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.18666 KB4571692 Aug 11, 2020
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.18666 KB4571692 Aug 11, 2020
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4571729 Aug 11, 2020
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4571729 Aug 11, 2020
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4571703 Aug 11, 2020
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4571703 Aug 11, 2020
Internet Explorer 11 on Windows RT 8.1 KB4571703 Aug 11, 2020
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4571729 Aug 11, 2020
Internet Explorer 11 on Windows Server 2012 KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows Server 2012 KB4571736 Aug 11, 2020
Internet Explorer 11 on Windows Server 2012 R2 KB4571687 Aug 11, 2020
Internet Explorer 11 on Windows Server 2012 R2 KB4571703 Aug 11, 2020
Internet Explorer 11 on Windows Server 2016 14393.3866 KB4571694 Aug 11, 2020
Internet Explorer 11 on Windows Server 2019 17763.1397 KB4565349 Aug 11, 2020
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4571730 Aug 11, 2020
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4571687 Aug 11, 2020
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4571730 Aug 11, 2020
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4571687 Aug 11, 2020

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.