CVE-2021-33745: Windows DNS Server Denial of Service Vulnerability
Windows DNS Server 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 6.3.9600.20069Patch KB5004285 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.1.7601.25661Patch KB5004307 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.23409Patch KB5004302 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.0.6003.21167Patch KB5004299 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19042.1110Patch KB5004237 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.4530Patch KB5004238 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19041.1110Patch KB5004237 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.2061Patch KB5004244
Event History
Frequently Asked Questions
What is the severity of CVE-2021-33745?
CVE-2021-33745 has a severity rating of Important according to Microsoft.
How do I fix CVE-2021-33745?
To fix CVE-2021-33745, apply the latest security updates provided by Microsoft for your affected Windows Server version.
What versions of Windows Server are affected by CVE-2021-33745?
CVE-2021-33745 affects multiple versions of Windows Server, including 2008, 2008 R2, 2012, 2012 R2, 2016, and 2019.
What type of vulnerability is CVE-2021-33745?
CVE-2021-33745 is classified as a Denial of Service vulnerability.
Can CVE-2021-33745 be exploited remotely?
Yes, CVE-2021-33745 can be exploited remotely to cause a denial of service condition in the affected Windows DNS Servers.