CVE-2021-31955: Windows Kernel Information Disclosure Vulnerability

Published Jun 8, 2021
·
Updated

Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.

Other sources

Windows Kernel Information Disclosure Vulnerability

Affected Software

17 affected components
Microsoft Windows 10 1809<10.0.17763.1999
Microsoft Windows 10 1909<10.0.18363.1621
Microsoft Windows 10 2004<10.0.19041.1052
Microsoft Windows 10 20h2<10.0.19042.1052
Microsoft Windows 10 21h1<10.0.19043.1052
Microsoft Windows Server 2004<10.0.19041.1052
Microsoft Windows Server 2019<10.0.17763.1999
Microsoft Windows Server 20h2<10.0.19042.1052
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Windows

Event History

Jun 8, 2021
CVE Published
via MITRE·10:46 PM
Data Sourced
via MITRE·10:46 PM
DescriptionSeverity
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM
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Frequently Asked Questions

1

What is the severity of CVE-2021-31955?

CVE-2021-31955 has a severity rating that indicates it can lead to information disclosure vulnerabilities in Microsoft Windows.

2

How do I fix CVE-2021-31955?

To fix CVE-2021-31955, ensure that you have the latest security updates installed for your affected version of Microsoft Windows.

3

Which versions of Windows are affected by CVE-2021-31955?

CVE-2021-31955 affects multiple versions of Microsoft Windows, including 10 (1809, 1909, 2004, 20H2, 21H1) and Windows Server (2016, 2019, 20H2).

4

What types of attacks can exploit CVE-2021-31955?

Exploitation of CVE-2021-31955 can allow attackers to read sensitive kernel memory from a user-mode process, posing a significant risk to system security.

5

Is there any known workaround for CVE-2021-31955?

Currently, there are no specific workarounds for CVE-2021-31955 other than applying the recommended patches from Microsoft.

Contact

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