CVE-2021-40450

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-40450
Win32k Elevation of Privilege Vulnerability

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450 Patch Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450 Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
History

22 Oct 2025, 00:17

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450 -

21 Oct 2025, 20:18

Type Values Removed Values Added
References
  • {'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}

21 Oct 2025, 19:19

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450 -
Information

Published : 2021-10-13 01:15

Updated : 2025-10-22 00:17

NVD link : CVE-2021-40450

Mitre link : CVE-2021-40450

CVE.ORG link : CVE-2021-40450

JSON object : View

Products Affected

microsoft

  • windows_10_1909
  • windows_server_2022
  • windows_server_20h2
  • windows_10_20h2
  • windows_11_21h2
  • windows_10_21h1
  • windows_10_2004
  • windows_server_2004
  • windows_server_2019
  • windows_10_1809
CWE
NVD-CWE-noinfo