MS.IE.jscript9.dll.convFunc.Memory.Corruption

Description

This indicates an attack attempt to exploit a Memory Corruption Vulnerability in Microsoft Internet Explorer.
The vulnerability is due to an error when the vulnerable software attempts to handle a maliciously crafted web page. An attacker can exploit this by tricking a user into visiting a malicious webpage and execute arbitrary code within the context of the application.

Affected Products

Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 2004 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 2004 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 2004 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 20H2 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 20H2 for ARM64-based Systems
Internet Explorer 11 on Windows 10 Version 20H2 for x64-based Systems
Internet Explorer 11 on Windows Server, version 1903 (Server Core installation)
Internet Explorer 11 on Windows Server, version 1909 (Server Core installation)
Internet Explorer 11 on Windows Server, version 2004 (Server Core installation)
Internet Explorer 11 on Windows Server, version 20H2 (Server Core Installation)

Impact

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

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://msrc.microsoft.com/update-guide/en-US/vulnerability/2020-17053

References