{"id":"CVE-2020-1220","aliases":["EUVD-2020-12100","GHSA-5gvj-67qm-53j6"],"status":"published","title":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly...","description":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01856,"percentile":0.79343,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2020-06-09T19:43:29Z","modified":"2026-06-17T03:00:50Z","products":[{"vendor":"microsoft","product":"edge"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1607 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1607 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1709 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1709 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1709 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1803 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1803 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1803 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1809 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1809 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1809 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1909 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1909 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 1909 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 2004 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 2004 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 10 version 2004 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 7 for 32-bit systems service pack 1"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 7 for x64-based systems service pack 1"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 8.1 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows 8.1 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows rt 8.1"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows server 2008 r2 for x64-based systems service pack 1"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows server 2012"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows server 2012 r2"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows server 2016"},{"vendor":"microsoft","product":"microsoft edge (chromium-based) in ie mode on windows server 2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1220","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1220"},{"url":"https://github.com/advisories/GHSA-5gvj-67qm-53j6"}],"sources":{"cve":[{"id":"CVE-2020-1220","description":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.","status":"published","published":"2020-06-09T19:43:29Z","modified":"2024-08-04T06:31:59.416Z","updated_at":"2026-11-02T14:35:56.213477Z"}],"euvd":[{"id":"EUVD-2020-12100","description":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.","status":"published","published":"2020-06-09T19:43:29Z","modified":"2024-08-04T06:31:59Z","updated_at":"2026-11-03T03:08:15.605178Z"}],"ghsa":[{"id":"GHSA-5gvj-67qm-53j6","title":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly...","description":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.","status":"published","published":"2022-05-24T17:19:50Z","modified":"2023-01-29T05:02:56Z","updated_at":"2026-11-02T14:45:12.348503Z"}],"nvd":[{"id":"CVE-2020-1220","description":"A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.","status":"published","published":"2020-06-09T20:15:15.007Z","modified":"2026-06-17T03:00:50.213Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:06:05.962132Z"}]}}