CVE-2021-40450

high

Description

Win32k Elevation of Privilege Vulnerability

References

https://www.edgescan.com/wp-content/uploads/2024/03/2023-Vulnerability-Statistics-Report.pdf

https://github.com/H4mx00/H4mx00-Pocs

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450

Details

Source: Mitre, NVD

Published: 2021-10-13

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.07526