MS.IE.JScript.Engine.FunctionEntryPointInfo.Use.After.Free

Description

This indicates an attack attempt to exploit a Use After Free 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

Windows 11 Version 22H2 for x64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows 11 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows Server 2022
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H1 for x64-based Systems
Windows 11 for x64-based Systems
Windows 10 Version 21H1 for 32-bit Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 11 for ARM64-based Systems
Windows 10 Version 21H1 for ARM64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 20H2 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows Server 2016
Windows 7 for 32-bit Systems Service Pack 1
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 8.1 for x64-based systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows RT 8.1
Windows Server 2019
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for x64-based Systems
Windows 8.1 for 32-bit systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2012 R2

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-2022-41118

References