U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2021-34459

Change History

CVE Modified by CISA-ADP 6/16/2026 11:55:54 PM

Action Type Old Value New Value
Added SSVC 

                  
                
              		

              
                
                  
                  
                    
{"timestamp":"2024-01-08T19:01:31.525962Z","id":"CVE-2021-34459","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

                  
                
              		
            

          
        

      

      

        

          CVE Modified by Microsoft Corporation
            6/16/2026 11:55:54 PM
        


        

          
            

              Action
              Type
              Old Value
              New Value
            

          

          
            

              Added
              Affected

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"Microsoft","product":"Windows 10 Version 1809","cpes":["cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:arm64:*"],"platforms":["32-bit Systems","x64-based Systems","ARM64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.17763.2061","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2019","cpes":["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.17763.2061","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","cpes":["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.17763.2061","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1909","cpes":["cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1679:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1679:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1679:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","x64-based Systems","ARM64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.18363.1679","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 21H1","cpes":["cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1110:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1110:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1110:*:*:*:*:*:x86:*"],"platforms":["x64-based Systems","ARM64-based Systems","32-bit Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19043.1110","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 2004","cpes":["cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1110:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19041.1110","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server version 2004","cpes":["cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1110:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19041.1110","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 20H2","cpes":["cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1110:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1110:*:*:*:*:*:arm64:*"],"platforms":["32-bit Systems","ARM64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19042.1110","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server version 20H2","cpes":["cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1110:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19042.1110","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1507","cpes":["cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19003:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19003:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.10240.19003","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1607","cpes":["cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4530:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4530:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.14393.4530","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2016","cpes":["cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4530:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.14393.4530","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2016 (Server Core installation)","cpes":["cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4530:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.14393.4530","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 8.1","cpes":["cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20069:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20069:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20069:*:*:*:*:*:*:*"],"platforms":["32-bit Systems","x64-based Systems","ARM64-based Systems"],"versions":[{"version":"6.3.0","lessThan":"6.3.9600.20069","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2012","cpes":["cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23409:*:*:*:*:*:x64:*"],"platforms":["x64-based Systems"],"versions":[{"version":"6.2.0","lessThan":"6.2.9200.23409","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2012 (Server Core installation)","cpes":["cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23409:*:*:*:*:*:x64:*"],"platforms":["x64-based Systems"],"versions":[{"version":"6.2.0","lessThan":"6.2.9200.23409","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2012 R2","cpes":["cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20069:*:*:*:*:*:x64:*"],"platforms":["x64-based Systems"],"versions":[{"version":"6.3.0","lessThan":"6.3.9600.20069","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server 2012 R2 (Server Core installation)","cpes":["cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20069:*:*:*:*:*:x64:*"],"platforms":["x64-based Systems"],"versions":[{"version":"6.3.0","lessThan":"6.3.9600.20069","versionType":"custom","status":"affected"}]}]