{"id":"CVE-2020-1242","aliases":["EUVD-2020-12121","GHSA-vrjv-gq3f-2v6v"],"status":"published","title":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross...","description":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03864,"percentile":0.90258,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2020-06-09T19:43:37Z","modified":"2026-06-17T03:00:53Z","products":[{"vendor":"microsoft","product":"edge"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1803 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1809 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 1909 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 2004 for 32-bit systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 2004 for arm64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows 10 version 2004 for x64-based systems"},{"vendor":"microsoft","product":"microsoft edge (edgehtml-based) on windows server 2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1242","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1242"},{"url":"https://github.com/advisories/GHSA-vrjv-gq3f-2v6v"}],"sources":{"cve":[{"id":"CVE-2020-1242","description":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.","status":"published","published":"2020-06-09T19:43:37Z","modified":"2024-08-04T06:31:59.919Z","updated_at":"2026-11-02T14:35:56.638833Z"}],"euvd":[{"id":"EUVD-2020-12121","description":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.","status":"published","published":"2020-06-09T19:43:37Z","modified":"2024-08-04T06:31:59Z","updated_at":"2026-11-03T03:08:14.784772Z"}],"ghsa":[{"id":"GHSA-vrjv-gq3f-2v6v","title":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross...","description":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.","status":"published","published":"2022-05-24T17:19:53Z","modified":"2023-01-29T05:03:13Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:45:16.184529Z"}],"nvd":[{"id":"CVE-2020-1242","description":"An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.","status":"published","published":"2020-06-09T20:15:16.257Z","modified":"2026-06-17T03:00:53.293Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:05.962132Z"}]}}