CVE-2023-21549: Windows SMB Witness Service Elevation of Privilege Vulnerability
First published: Tue Jan 10 2023(Updated: )
Windows SMB Witness Service Elevation of Privilege Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2012 R2 | ||
| 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 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =22H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =21H2 | |
| Windows 11 | =21H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Windows 11 | ||
| Windows 11 | ||
| Windows 11 | ||
| Windows 11 | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 | ||
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | ||
| Windows 10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-21549?
CVE-2023-21549 has been rated with a severity level of critical due to its potential for elevation of privilege in affected Windows systems.
How do I fix CVE-2023-21549?
To remediate CVE-2023-21549, apply the latest security updates provided by Microsoft for your affected version of Windows.
Which versions of Windows are affected by CVE-2023-21549?
CVE-2023-21549 affects multiple versions of Windows, including Windows 10, Windows 11, and certain Windows Server editions.
Can CVE-2023-21549 be exploited remotely?
CVE-2023-21549 requires local access and can be exploited by a logged-in user, not remotely.
What are the potential impacts of CVE-2023-21549?
Exploitation of CVE-2023-21549 could allow an attacker to gain elevated privileges on the affected system, compromising its security.
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- canonical/microsoft windows server 2019
- canonical/windows 11
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- version/windows 11/21h2
- canonical/microsoft windows server 2022
- canonical/microsoft windows server 2016
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows
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- canonical/windows 10
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- version/windows 10/22h2
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- version/windows 10/21h2