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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2021-36934

Change History

CVE Modified by Microsoft Corporation 12/28/2023 6:15:43 PM

Action Type Old Value New Value
Added CVSS V3.1 

								
							
							
								
							
						
								
							
								
Microsoft Corporation AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

								
								
					

					

						Changed
						Description
						
							
							
								
							
								
Windows Elevation of Privilege Vulnerability

								
							
							
								
							
						
								
							
								
<p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>
<p>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p>
<p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>