What is the severity of CVE-2021-1722?

CVE-2021-1722 has a severity rating of Critical.

How do I fix CVE-2021-1722?

To fix CVE-2021-1722, apply the security updates provided by Microsoft for affected versions of Windows.

CVE-2021-1722 affects multiple versions of Microsoft Windows, including Windows 7, Windows 10, and various Windows Server editions.

Yes, CVE-2021-1722 allows attackers to execute arbitrary code on the affected systems remotely.

While a permanent fix is to apply updates, disabling the Windows Fax Service can act as a temporary workaround for CVE-2021-1722.

9.8

25/2/2021

3/8/2024

First published: Thu Feb 25 2021(Updated: )

Windows Fax Service Remote Code Execution Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Windows 10
Microsoft Windows 10	=20h2
Microsoft Windows 10	=1607
Microsoft Windows 10	=1803
Microsoft Windows 10	=1809
Microsoft Windows 10	=1909
Microsoft Windows 10	=2004
Microsoft Windows 7	=sp1
Microsoft Windows 8.1
Microsoft Windows RT
Microsoft Windows Server 2008 Itanium	=sp2
Microsoft Windows Server 2008 Itanium	=r2-sp1
Microsoft Windows Server 2012 x64
Microsoft Windows Server 2012 x64	=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016	=20h2
Microsoft Windows Server 2016	=1909
Microsoft Windows Server 2016	=2004
Microsoft Windows Server 2019

What is the severity of CVE-2021-1722?
CVE-2021-1722 has a severity rating of Critical.
How do I fix CVE-2021-1722?
To fix CVE-2021-1722, apply the security updates provided by Microsoft for affected versions of Windows.
What systems are affected by CVE-2021-1722?
CVE-2021-1722 affects multiple versions of Microsoft Windows, including Windows 7, Windows 10, and various Windows Server editions.
Can CVE-2021-1722 lead to remote code execution?
Yes, CVE-2021-1722 allows attackers to execute arbitrary code on the affected systems remotely.
Is there a workaround for CVE-2021-1722 until a patch can be applied?
While a permanent fix is to apply updates, disabling the Windows Fax Service can act as a temporary workaround for CVE-2021-1722.

What is the severity of CVE-2021-1722?
CVE-2021-1722 has a severity rating of Critical.
How do I fix CVE-2021-1722?
To fix CVE-2021-1722, apply the security updates provided by Microsoft for affected versions of Windows.
What systems are affected by CVE-2021-1722?
CVE-2021-1722 affects multiple versions of Microsoft Windows, including Windows 7, Windows 10, and various Windows Server editions.
Can CVE-2021-1722 lead to remote code execution?
Yes, CVE-2021-1722 allows attackers to execute arbitrary code on the affected systems remotely.
Is there a workaround for CVE-2021-1722 until a patch can be applied?
While a permanent fix is to apply updates, disabling the Windows Fax Service can act as a temporary workaround for CVE-2021-1722.