CVE-2021-31961: Microsoft Windows InstallService Time-Of-Check Time-Of-Use Denial-of-Service Vulnerability
First published: Tue Jul 13 2021(Updated: )
Windows InstallService Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =21H1 | |
| Windows 10 | =21H1 | |
| Windows 10 | =21H1 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =20h2 | |
| Windows 10 | =21h1 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-31961?
CVE-2021-31961 has a severity rating that requires immediate attention as it allows local attackers to cause a denial-of-service condition.
How can I mitigate CVE-2021-31961?
To mitigate CVE-2021-31961, it's essential to apply the latest security patches provided by Microsoft for the affected Windows versions.
Which versions of Windows are affected by CVE-2021-31961?
CVE-2021-31961 affects various versions of Windows 10, including 1809, 1909, 2004, 20H2, and 21H1, as well as Windows Server 2019.
What is the nature of CVE-2021-31961 vulnerability?
CVE-2021-31961 is categorized as an elevation of privilege vulnerability affecting the Windows InstallService.
What are the possible consequences of exploiting CVE-2021-31961?
Exploiting CVE-2021-31961 can lead to a denial-of-service condition, impacting system availability.
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