CVE-2021-1647🔥 Known Exploited (CISA KEV)HIGH7.8CVSS Severity ScoreEPSS Score63.8890%EPSS Percentile86.67thPublished2021-01-12Last Modified2025-10-30Data SourcesNVDCISA KEVFIRST.org EPSSVulnerability DescriptionMicrosoft Defender Remote Code Execution VulnerabilityAffected Platforms (CPE)📦MicrosoftWindows DefenderAll versions📦MicrosoftSecurity EssentialsAll versions📦MicrosoftSystem Center Endpoint ProtectionAll versions= 2012References & Advisories🔗 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1647🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1647🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1647