CVE-2021-33771: Windows Kernel Elevation of Privilege Vulnerability

Published Jul 13, 2021
·
Updated

Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

Other sources

Windows Kernel Elevation of Privilege Vulnerability

NVD

Affected Software

57 affected componentsFixes available
Microsoft Windows 10
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=1607
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Windows
Microsoft Windows 10 1507<10.0.10240.19003
Microsoft Windows 10 1607<10.0.14393.4530
Microsoft Windows 10 1809<10.0.17763.2061
Microsoft Windows 10 1909<10.0.18363.1679
Microsoft Windows 10 2004<10.0.19041.1110
Microsoft Windows 10 20h2<10.0.19042.1110
Microsoft Windows 10 21h1<10.0.19043.1110
Microsoft Windows Server 2004<10.0.19041.1110
Microsoft Windows Server 2016<10.0.14393.4530
Microsoft Windows Server 2019<10.0.17763.2061
Microsoft Windows Server 20h2<10.0.19042.1110
Microsoft Windows 8.1 for 32-bit systems<6.3.9600.20069
6.3.9600.20069
Microsoft Windows 8.1 for x64-based systems<6.3.9600.20069
6.3.9600.20069
Microsoft Windows Server 2012 R2<6.3.9600.20069
6.3.9600.20069
Microsoft Windows Server 2012 R2<6.3.9600.20069
6.3.9600.20069
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows RT 8.1<6.3.9600.20069
6.3.9600.20069
Microsoft Windows Server=20H2
10.0.19042.1110
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows Server=2004
10.0.19041.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061

Event History

Jul 13, 2021
CVE Published
via Microsoft·02:00 PM
Known Exploited
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
Jul 14, 2021
CVE Published
via MITRE·05:53 PM
Data Sourced
via MITRE·05:53 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2021-33771?

CVE-2021-33771 has a severity rating that may vary based on the affected system, but it is classified as a privilege escalation vulnerability.

2

How do I fix CVE-2021-33771?

To fix CVE-2021-33771, ensure that you have installed the latest security updates provided by Microsoft for your affected Windows version.

3

What versions of Windows are affected by CVE-2021-33771?

CVE-2021-33771 affects multiple versions of Windows, including Windows 10, Windows 8.1, and various Windows Server editions.

4

Can CVE-2021-33771 be exploited remotely?

CVE-2021-33771 requires local access to the system for exploitation, meaning it cannot be exploited remotely.

5

What are the potential impacts of CVE-2021-33771?

Exploiting CVE-2021-33771 could allow an attacker to gain elevated privileges on an affected system, potentially leading to unauthorized access or control.

Contact

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