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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2021-26857

Change History

CVE Modified by Microsoft Corporation 8/19/2026 1:17:38 PM

Action Type Old Value New Value
Added Reference 

                  
                
              		

              
                
                  
                  
                    
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26857

                  
                
              		
            

            

              Removed
              Reference

              
                
                  
                  
                    
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857

                  
                
              		

              
                
                  
                  
                    

                  
                
              		
            

            

              Removed
              Reference Type

              
                
                  
                  
                    
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857 Types: Patch, Vendor Advisory

                  
                
              		

              
                
                  
                  
                    

                  
                
              		
            

            

              Changed
              Affected

              
                
                  
                  
                    
[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 19","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 8","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 22","cpes":["cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 2","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 13","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 23","cpes":["cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 3","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 14","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 4","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 15","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 5","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 6","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 16","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 17","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 7","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 18","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2010 Service Pack 3","cpes":["cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*"],"platforms":["Unknown"],"versions":[{"version":"14.0.0.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Service Pack 1","cpes":["cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_1:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 21","cpes":["cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 12","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 8","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 1","cpes":["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 9","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 10","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 11","cpes":["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"publication","versionType":"custom","status":"affected"}]}]

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2010 Service Pack 3","versions":[{"version":"14.0.0.0","lessThan":"14.03.0513.000","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 21","platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"15.00.1395.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 22","platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"15.00.1473.006","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Cumulative Update 23","platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"15.00.1497.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2013 Service Pack 1","platforms":["x64-based Systems"],"versions":[{"version":"15.00.0","lessThan":"15.00.0847.064","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 10","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1531.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 11","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1591.018","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 12","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1713.010","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 13","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1779.008","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 14","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1847.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 15","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1913.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 16","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0","lessThan":"15.01.1979.008","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 17","platforms":["x64-based 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Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0464.015","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 4","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0659.012","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 5","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0595.008","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 6","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0529.013","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 7","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0721.013","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 8","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0","lessThan":"15.02.0792.010","versionType":"custom","status":"affected"}]}]