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Vulnerability · Published Mar 11, 2021 · Assigned by microsoft

CVE-2021-26893Windows DNS Server Remote Code Execution Vulnerability

Critical 9.8

In plain English

A critical-severity security flaw in Windows Server 2008 R2 Service Pack 1 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.0% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)7.0%top 5.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Windows DNS Server Remote Code Execution Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.24566
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.24566
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21070
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.21070
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.23298
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.23298
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.19968
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.19968
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.4283
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.4283
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.1817
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.1817
Microsoft Windows Server version 2004 10.0.0 – before 10.0.19043.867
Microsoft Windows Server version 20H2 10.0.0 – before 10.0.19043.867
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 – before 10.0.18363.1440

References