CVE-2021-40450🔥 Known Exploited (CISA KEV)HIGH7.8CVSS Severity ScoreEPSS Score72.3020%EPSS Percentile91.14thPublished2021-10-13Last Modified2025-10-30Data SourcesNVDCISA KEVFIRST.org EPSSVulnerability DescriptionWin32k Elevation of Privilege VulnerabilityAffected Platforms (CPE)💻MicrosoftWindows 10 1809< 10.0.17763.2237💻MicrosoftWindows 10 1909< 10.0.18363.1854💻MicrosoftWindows 10 2004< 10.0.19041.1288💻MicrosoftWindows 10 20h2< 10.0.19042.1288Show All Affected Platforms (+6 more)References & Advisories🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450