MS.IE.VBScript.Engine.mergeAttributes.handling.Code.Exectution

Description

This indicates an attack attempt to exploit a Remote Code Execution Vulnerability in Microsoft Internet Explorer VBScript Engine.
The vulnerability is due to an error in the application when handling a maliciously crafted web page. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious web page and execute arbitrary code within the context of the application.

Affected Products

Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Internet Explorer 11 on Windows Server 2012
Internet Explorer 11 on Windows 8.1 for 32-bit systems
Internet Explorer 11 on Windows 8.1 for x64-based systems
Internet Explorer 11 on Windows Server 2012 R2
Internet Explorer 11 on Windows RT 8.1
Internet Explorer 11 on Windows 10 for 32-bit Systems
Internet Explorer 11 on Windows 10 for x64-based Systems
Internet Explorer 11 on Windows Server 2016
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems
Internet Explorer 11 on Windows Server 2019
Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
Internet Explorer 10 on Windows Server 2012

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1390
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0824

References