Threat Encyclopedia

MS.Defender.CVE-2021-1647.Remote.Code.Execution

Description

This indicates an attack attempt to exploit an Heap Buffer Overflow Vulnerability in Windows Defender.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted file. A remote attacker may be able to exploit this to execute arbitrary code, via a crafted file.

Affected Products

Microsoft System Center Endpoint Protection
Microsoft System Center 2012 R2 Endpoint Protection
Microsoft Security Essentials
Microsoft System Center 2012 Endpoint Protection
Windows Defender on Windows 10 Version 1803 for 32-bit Systems
Windows Defender on Windows 10 Version 1803 for x64-based Systems
Windows Defender on Windows 10 Version 1803 for ARM64-based Systems
Windows Defender on Windows 10 Version 1809 for 32-bit Systems
Windows Defender on Windows 10 Version 1809 for x64-based Systems
Windows Defender on Windows 10 Version 1809 for ARM64-based Systems
Windows Defender on Windows Server 2019
Windows Defender on Windows Server 2019 (Server Core installation)
Windows Defender on Windows 10 Version 1909 for 32-bit Systems
Windows Defender on Windows 10 Version 1909 for x64-based Systems
Windows Defender on Windows 10 Version 1909 for ARM64-based Systems
Windows Defender on Windows Server, version 1909 (Server Core installation)
Windows Defender on Windows 10 Version 1903 for 32-bit Systems
Windows Defender on Windows 10 Version 1903 for x64-based Systems
Windows Defender on Windows 10 Version 1903 for ARM64-based Systems
Windows Defender on Windows Server, version 1903 (Server Core installation)
Windows Defender on Windows 10 Version 2004 for 32-bit Systems
Windows Defender on Windows 10 Version 2004 for ARM64-based Systems
Windows Defender on Windows 10 Version 2004 for x64-based Systems
Windows Defender on Windows Server, version 2004 (Server Core installation)
Windows Defender on Windows 10 Version 20H2 for x64-based Systems
Windows Defender on Windows 10 Version 20H2 for 32-bit Systems
Windows Defender on Windows 10 Version 20H2 for ARM64-based Systems
Windows Defender on Windows Server, version 20H2 (Server Core Installation)
Windows Defender on Windows 10 for 32-bit Systems
Windows Defender on Windows 10 for x64-based Systems
Windows Defender on Windows 10 Version 1607 for 32-bit Systems
Windows Defender on Windows 10 Version 1607 for x64-based Systems
Windows Defender on Windows Server 2016
Windows Defender on Windows Server 2016 (Server Core installation)
Windows Defender on Windows 7 for 32-bit Systems Service Pack 1
Windows Defender on Windows 7 for x64-based Systems Service Pack 1
Windows Defender on Windows 8.1 for 32-bit systems
Windows Defender on Windows 8.1 for x64-based systems
Windows Defender on Windows RT 8.1
Windows Defender on Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Defender on Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Defender on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Defender on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Defender on Windows Server 2012
Windows Defender on Windows Server 2012 (Server Core installation)
Windows Defender on Windows Server 2012 R2
Windows Defender on Windows Server 2012 R2 (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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1647

CVE References

CVE-2021-1647