What is the severity of CVE-2021-1699?

CVE-2021-1699 has a severity rating of 'Important' due to its potential for information disclosure.

How do I fix CVE-2021-1699?

To mitigate CVE-2021-1699, install the latest patches provided by Microsoft for the affected Windows versions.

Which Windows versions are affected by CVE-2021-1699?

CVE-2021-1699 affects multiple Windows versions, including Windows 10, Windows 7, and various Windows Server editions.

What type of vulnerability is CVE-2021-1699?

CVE-2021-1699 is classified as an information disclosure vulnerability in the modem.sys component of Windows.

Are there any known exploits for CVE-2021-1699?

As of now, there are no known active exploits specifically targeting CVE-2021-1699.

Vulnerability/
CVE-2021-1699

medium

5.5

12/1/2021

8/10/2024

CVE-2021-1699: Windows (modem.sys) Information Disclosure Vulnerability

First published: Tue Jan 12 2021(Updated: )

Windows (modem.sys) Information Disclosure Vulnerability

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Windows Server	=1909	fix available externally
Microsoft Windows Server	=2004	fix available externally
Microsoft Windows 7		fix available externally fix available externally
Microsoft Windows 7		fix available externally fix available externally
Microsoft Windows Server	=20H2	fix available externally
Microsoft Windows Server 2012 R2		fix available externally fix available externally
Microsoft Windows Server 2012 R2		fix available externally fix available externally
Microsoft Windows Server 2008 R2		fix available externally fix available externally
Microsoft Windows Server 2008 R2		fix available externally fix available externally
Microsoft Windows RT		fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows 8.1		fix available externally fix available externally
Microsoft Windows 8.1		fix available externally fix available externally
Microsoft Windows Server 2019		fix available externally
Microsoft Windows Server 2019		fix available externally
Microsoft Windows Server 2016		fix available externally
Microsoft Windows Server 2016		fix available externally
Windows 10	=20H2	fix available externally
Windows 10	=20H2	fix available externally
Windows 10	=1803	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1607	fix available externally
Windows 10	=1607	fix available externally
Windows 10	=1909	fix available externally
Windows 10	=1909	fix available externally
Windows 10	=1909	fix available externally
Windows 10		fix available externally
Windows 10	=1803	fix available externally
Windows 10	=1803	fix available externally
Windows 10		fix available externally
Windows 10	=2004	fix available externally
Windows 10	=2004	fix available externally
Windows 10	=2004	fix available externally
Windows 10
Windows 10	=20h2
Windows 10	=1607
Windows 10	=1803
Windows 10	=1809
Windows 10	=1909
Windows 10	=2004
Microsoft Windows 7	=sp1
Microsoft Windows
Microsoft Windows RT
Microsoft Windows Server	=sp2
Microsoft Windows Server	=r2-sp1
Microsoft Windows Server
Microsoft Windows Server	=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016	=20h2
Microsoft Windows Server 2016	=1909
Microsoft Windows Server 2016	=2004
Microsoft Windows Server 2019

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1699

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-1699?
CVE-2021-1699 has a severity rating of 'Important' due to its potential for information disclosure.
How do I fix CVE-2021-1699?
To mitigate CVE-2021-1699, install the latest patches provided by Microsoft for the affected Windows versions.
Which Windows versions are affected by CVE-2021-1699?
CVE-2021-1699 affects multiple Windows versions, including Windows 10, Windows 7, and various Windows Server editions.
What type of vulnerability is CVE-2021-1699?
CVE-2021-1699 is classified as an information disclosure vulnerability in the modem.sys component of Windows.
Are there any known exploits for CVE-2021-1699?
As of now, there are no known active exploits specifically targeting CVE-2021-1699.

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