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Critical severity9.8NVD Advisory· Published Mar 11, 2021· Updated Aug 19, 2026

CVE-2021-26895

CVE-2021-26895

Description

Windows DNS Server Remote Code Execution Vulnerability

Affected products

14
  • Microsoft/Windows Server 20083 versions
    cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*+ 2 more
    • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
    • cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:x64:*
    • cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:x86:*
  • Microsoft/Windows Server 20123 versions
    cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:-:*:-:*
    • cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*range: 6.2.0
  • Microsoft/Windows Server 20165 versions
    cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*range: 10.0.0
  • Microsoft/Windows Server 20192 versions
    cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*range: 10.0.0
  • Microsoft/Windows NT DNS Serverllm-fuzzy

Patches

Vulnerability mechanics

References

2

News mentions

0

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