CVE-2021-40450

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

13/10/2021

Last modified:

07/03/2025

Description

Win32k Elevation of Privilege Vulnerability

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

4.60

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:microsoft:windows_10_1809::::::::		10.0.17763.2237 (excluding)
cpe:2.3:o:microsoft:windows_10_1909::::::::		10.0.18363.1854 (excluding)
cpe:2.3:o:microsoft:windows_10_2004::::::::		10.0.19041.1288 (excluding)
cpe:2.3:o:microsoft:windows_10_20h2::::::::		10.0.19042.1288 (excluding)
cpe:2.3:o:microsoft:windows_10_21h1::::::::		10.0.19043.1288 (excluding)
cpe:2.3:o:microsoft:windows_11_21h2::::::::		10.0.22000.258 (excluding)
cpe:2.3:o:microsoft:windows_server_2004::::::::		10.0.19041.1288 (excluding)
cpe:2.3:o:microsoft:windows_server_2019::::::::		10.0.17763.2237 (excluding)
cpe:2.3:o:microsoft:windows_server_2022::::::::		10.0.20348.288 (excluding)
cpe:2.3:o:microsoft:windows_server_20h2::::::::		10.0.19042.1288 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-40450

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools