CVE-2021-27063: Windows DNS Server Denial of Service Vulnerability
Windows DNS Server Denial of Service Vulnerability This CVE ID is unique from CVE-2021-26896.
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 6.1.7601.24566Patch KB5000851 - Upgrade
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Fixed in 6.0.6003.21070Patch KB5000856 - Upgrade
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Fixed in 6.2.9200.23298Patch KB5000840 - Upgrade
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Fixed in 6.3.9600.19968Patch KB5000853 - Upgrade
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Fixed in 10.0.14393.4283Patch KB5000803 - Upgrade
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Fixed in 10.0.19043.867Patch KB5000802 - Upgrade
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Fixed in 10.0.18363.1440Patch KB5000808 - Upgrade
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Fixed in 10.0.17763.1817Patch KB5000822
Event History
Frequently Asked Questions
What is the severity of CVE-2021-27063?
CVE-2021-27063 is classified as a Denial of Service vulnerability.
How do I fix CVE-2021-27063?
To address CVE-2021-27063, apply the latest security updates provided by Microsoft for affected Windows Server versions.
Which systems are affected by CVE-2021-27063?
CVE-2021-27063 affects various versions of Microsoft Windows Server, including 2008, 2012, 2016, and 2019.
Can CVE-2021-27063 be exploited remotely?
Yes, CVE-2021-27063 can be exploited remotely to create a denial of service condition.
What are the potential impacts of CVE-2021-27063?
The potential impact of CVE-2021-27063 is service interruption due to the denial of service in affected Windows DNS servers.