CVE-2023-21816: Windows Active Directory Domain Services API Denial of Service Vulnerability
Windows Active Directory Domain Services API Denial of Service Vulnerability
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.24116Patch KB5022895 - Upgrade
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Fixed in 6.3.9600.20821Patch KB5022894 - Upgrade
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Fixed in 6.1.7601.26366Patch KB5022874 - Upgrade
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Fixed in 6.0.6003.21915Patch KB5022893 - Upgrade
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Fixed in 10.0.14393.5717Patch KB5022838 - Upgrade
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Fixed in 10.0.10240.19747Patch KB5022858 - Upgrade
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Fixed in 10.0.19045.2604Patch KB5022834 - Upgrade
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Fixed in 10.0.19044.2604Patch KB5022834 - Upgrade
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Fixed in 10.0.22621.1265Patch KB5022845 - Upgrade
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Fixed in 10.0.22621.1574Patch KB5022836 - Upgrade
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Fixed in 10.0.19042.2604Patch KB5022834 - Upgrade
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Fixed in 10.0.17763.4010Patch KB5022840 - Upgrade
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Fixed in 10.0.20348.1547Fixed in 10.0.20348.1540Patch KB5022921
Event History
Frequently Asked Questions
What is the severity of CVE-2023-21816?
CVE-2023-21816 is classified as a denial of service vulnerability affecting Windows Active Directory Domain Services.
How do I fix CVE-2023-21816?
To mitigate CVE-2023-21816, apply the latest security updates provided by Microsoft for the affected Windows Server versions.
What systems are affected by CVE-2023-21816?
CVE-2023-21816 impacts multiple versions of Windows Server, including 2008, 2012, 2016, 2019, and 2022, as well as Windows 10 and 11.
What are the consequences of CVE-2023-21816?
Exploitation of CVE-2023-21816 could lead to denial of service, potentially causing disruptions in the availability of Active Directory services.
Is there a workaround for CVE-2023-21816?
Currently, the recommended action for CVE-2023-21816 is to apply security updates as there are no known effective workarounds.