CVE-2021-26886: Microsoft Windows User Profile Service Directory Junction Denial-of-Service Vulnerability
First published: Tue Mar 09 2021(Updated: )
User Profile Service Denial of Service Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server | =1909 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| 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 | ||
| Windows 10 | =1803 | |
| Windows 10 | =1803 | |
| Windows 10 | ||
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | ||
| Windows 10 | =20h2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1803 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Microsoft Windows | ||
| Microsoft Windows RT | ||
| 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 | ||
| Microsoft Windows Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-26886?
CVE-2021-26886 has a severity rating of Medium, as it allows local attackers to create a denial-of-service condition.
How do I fix CVE-2021-26886?
To fix CVE-2021-26886, install the latest security update provided by Microsoft for your affected Windows version.
Which operating systems are affected by CVE-2021-26886?
CVE-2021-26886 affects several versions of Microsoft Windows, including various releases of Windows 10 and Windows Server.
Can CVE-2021-26886 be exploited remotely?
No, CVE-2021-26886 requires local access to exploit, making it a local denial-of-service vulnerability.
What type of vulnerability is CVE-2021-26886 classified as?
CVE-2021-26886 is classified as a denial-of-service vulnerability in the User Profile Service.
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- agent/first-publish-date
- collector/msrc-cve
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- alias/ZDI-CAN-12108
- alias/CVE-2021-26886
- vendor/microsoft
- canonical/microsoft windows server 2012 r2
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- version/microsoft windows server/2004
- version/microsoft windows server/20h2
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- canonical/microsoft windows rt
- canonical/microsoft windows 8.1
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
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- version/windows 10/1803
- version/windows 10/1809
- version/windows 10/1607
- version/windows 10/1909
- version/windows 10/2004
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- version/microsoft windows server/r2
- version/microsoft windows server 2016/20h2
- version/microsoft windows server 2016/1909
- version/microsoft windows server 2016/2004
- canonical/microsoft windows operating system