CVE-2021-26892: Microsoft Windows EFI Partition Incorrect Authorization Denial-of-Service Vulnerability
First published: Tue Mar 09 2021(Updated: )
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server | =1909 | |
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =1803 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1803 | |
| Windows 10 | =1803 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =20h2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1803 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =1909 | |
| 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-2021-26892?
CVE-2021-26892 has a severity rating of important according to Microsoft.
How do I fix CVE-2021-26892?
To fix CVE-2021-26892, install the available patches from Microsoft for your affected Windows version.
What versions of Windows are affected by CVE-2021-26892?
CVE-2021-26892 affects various versions of Windows including Windows 10 versions 20H2, 1809, 1803, 1909, and Windows Server 2016 and 2019.
Can CVE-2021-26892 be exploited remotely?
No, CVE-2021-26892 can only be exploited locally by an attacker with access to the system.
What type of vulnerability is CVE-2021-26892?
CVE-2021-26892 is a security feature bypass vulnerability in the Windows Extensible Firmware Interface.
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