CVE-2021-26877: Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server Remote Code Execution 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 6.1.7601.24566Patch KB5000851 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.0.6003.21070Patch KB5000856 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.23298Patch KB5000840 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.4283Patch KB5000803 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19043.867Patch KB5000802 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.1817Patch KB5000822 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.19968Patch KB5000853 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.18363.1440Patch KB5000808
Event History
Frequently Asked Questions
What is the severity of CVE-2021-26877?
CVE-2021-26877 has a CVSS score of 9.8, indicating critical severity.
What systems are affected by CVE-2021-26877?
CVE-2021-26877 affects various versions of Microsoft Windows Server, including 2008, 2012, 2016, and 2019.
How do I fix CVE-2021-26877?
To fix CVE-2021-26877, apply the latest security updates provided by Microsoft.
What type of vulnerability is CVE-2021-26877?
CVE-2021-26877 is a remote code execution vulnerability in Windows DNS Server.
Can CVE-2021-26877 be exploited remotely?
Yes, CVE-2021-26877 can be exploited remotely by attackers, potentially allowing them to execute arbitrary code.