CVE-2021-34484🔥 Known Exploited (CISA KEV)HIGH7.8CVSS Severity ScoreEPSS Score34.1350%EPSS Percentile90.29thPublished2021-08-12Last Modified2025-10-30Data SourcesNVDCISA KEVFIRST.org EPSSVulnerability DescriptionWindows User Profile Service Elevation of Privilege VulnerabilityAffected Platforms (CPE)💻MicrosoftWindows 10 1507< 10.0.10240.19022💻MicrosoftWindows 10 1607< 10.0.14393.4583💻MicrosoftWindows 10 1809< 10.0.17763.2114💻MicrosoftWindows 10 1909< 10.0.18363.1734Show All Affected Platforms (+12 more)References & Advisories🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34484🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34484🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34484