CVE-2021-43228: SymCrypt Denial of Service Vulnerability
First published: Wed Dec 15 2021(Updated: )
SymCrypt Denial of Service Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 11 | ||
| Microsoft Windows 11 | ||
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server | =2022 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| =20h2 | ||
| =20h2 | ||
| =20h2 | ||
| =21h1 | ||
| =21h1 | ||
| =21h1 | ||
| =21h2 | ||
| =21h2 | ||
| =21h2 | ||
| =1909 | ||
| =1909 | ||
| =1909 | ||
| =2004 | ||
| =2004 | ||
| =2004 | ||
| =20h2 | ||
| =2022 | ||
| =2004 | ||
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Frequently Asked Questions
What is the severity of CVE-2021-43228?
CVE-2021-43228 has been rated as important, indicating a significant risk to affected systems.
How do I fix CVE-2021-43228?
To mitigate CVE-2021-43228, apply the latest security updates provided by Microsoft for your affected version of Windows.
Which systems are affected by CVE-2021-43228?
CVE-2021-43228 affects multiple versions of Microsoft Windows, including Windows 10 and Windows Server 2019.
What type of vulnerability is CVE-2021-43228?
CVE-2021-43228 is a denial of service vulnerability found in the SymCrypt library.
What can happen if I don't address CVE-2021-43228?
Failing to address CVE-2021-43228 could allow an attacker to create a denial of service condition, impacting system availability.
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- canonical/microsoft windows 10
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- version/microsoft windows 10/21h1
- version/microsoft windows 10/21h2
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 11
- canonical/microsoft windows server
- version/microsoft windows server/20h2
- version/microsoft windows server/2022
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/2004
- canonical/microsoft windows server 2019