CVE-2021-26873: Microsoft Windows User Profile Service Directory Junction Privilege Escalation Vulnerability
First published: Tue Mar 09 2021(Updated: )
Windows User Profile Service Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 7 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server | =1909 | |
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows 7 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| 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 7 | =sp1 | |
| Microsoft Windows | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| 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 Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-26873?
CVE-2021-26873 has a severity rating of Important, allowing local attackers to escalate privileges.
How do I fix CVE-2021-26873?
To fix CVE-2021-26873, apply the appropriate security updates released by Microsoft for the affected Windows versions.
Which versions of Windows are affected by CVE-2021-26873?
CVE-2021-26873 affects various versions of Windows including Windows 7, 10, and Windows Server editions.
Can CVE-2021-26873 be exploited remotely?
CVE-2021-26873 cannot be exploited remotely and requires local access to the affected system.
Is there a workaround for CVE-2021-26873?
There are no specific workarounds for CVE-2021-26873; applying the security updates is the recommended mitigation method.
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- alias/ZDI-CAN-12194
- alias/CVE-2021-26873
- vendor/microsoft
- canonical/microsoft windows 7
- canonical/microsoft windows server 2008 r2
- canonical/microsoft windows server
- version/microsoft windows server/1909
- version/microsoft windows server/20h2
- canonical/microsoft windows server 2012 r2
- version/microsoft windows server/2004
- canonical/microsoft windows rt
- canonical/microsoft windows 8.1
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- canonical/windows 10
- version/windows 10/20h2
- version/windows 10/1803
- version/windows 10/1809
- version/windows 10/1607
- version/windows 10/1909
- version/windows 10/2004
- version/microsoft windows 7/sp1
- canonical/microsoft windows
- version/microsoft windows server/sp2
- version/microsoft windows server/r2-sp1
- 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