CVE-2021-40450

Microsoft Win32k Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

Win32k Elevation of Privilege Vulnerability

Una vulnerabilidad de Elevación de Privilegios en Win32k . Este ID de CVE es diferente de CVE-2021-40449, CVE-2021-41357

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-09-02 CVE Reserved
2021-10-13 CVE Published
2022-04-25 Exploited in Wild
2022-05-16 KEV Due Date
2025-02-04 CVE Updated
2025-03-30 EPSS Updated
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450	2024-07-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 1809 Search vendor "Microsoft" for product "Windows 10 1809"				< 10.0.17763.2237 Search vendor "Microsoft" for product "Windows 10 1809" and version " < 10.0.17763.2237"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 1909 Search vendor "Microsoft" for product "Windows 10 1909"				< 10.0.18363.1854 Search vendor "Microsoft" for product "Windows 10 1909" and version " < 10.0.18363.1854"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 2004 Search vendor "Microsoft" for product "Windows 10 2004"				< 10.0.19041.1288 Search vendor "Microsoft" for product "Windows 10 2004" and version " < 10.0.19041.1288"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 20h2 Search vendor "Microsoft" for product "Windows 10 20h2"				< 10.0.19042.1288 Search vendor "Microsoft" for product "Windows 10 20h2" and version " < 10.0.19042.1288"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 21h1 Search vendor "Microsoft" for product "Windows 10 21h1"				< 10.0.19043.1288 Search vendor "Microsoft" for product "Windows 10 21h1" and version " < 10.0.19043.1288"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 21h2 Search vendor "Microsoft" for product "Windows 11 21h2"				< 10.0.22000.258 Search vendor "Microsoft" for product "Windows 11 21h2" and version " < 10.0.22000.258"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2004 Search vendor "Microsoft" for product "Windows Server 2004"				< 10.0.19041.1288 Search vendor "Microsoft" for product "Windows Server 2004" and version " < 10.0.19041.1288"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019"				< 10.0.17763.2237 Search vendor "Microsoft" for product "Windows Server 2019" and version " < 10.0.17763.2237"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022"				< 10.0.20348.288 Search vendor "Microsoft" for product "Windows Server 2022" and version " < 10.0.20348.288"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 20h2 Search vendor "Microsoft" for product "Windows Server 20h2"				< 10.0.19042.1288 Search vendor "Microsoft" for product "Windows Server 20h2" and version " < 10.0.19042.1288"		-		Affected