{"id":"CVE-2021-42308","aliases":["EUVD-2021-29283","GHSA-8xpv-h7vw-hc6h"],"status":"published","title":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","description":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01338,"percentile":0.71645,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-290"],"published":"2021-11-24T01:05:13Z","modified":"2026-08-19T18:31:45Z","products":[{"vendor":"microsoft","product":"edge_chromium"},{"vendor":"microsoft","product":"microsoft edge (chromium-based)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42308","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42308","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42308"},{"url":"https://github.com/advisories/GHSA-8xpv-h7vw-hc6h"}],"sources":{"cve":[{"id":"CVE-2021-42308","title":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","description":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","status":"published","published":"2021-11-24T01:05:13Z","modified":"2026-08-19T16:27:09.422Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"low","assessor":"cna"}],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29283","description":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","status":"published","published":"2021-11-24T01:05:13Z","modified":"2026-08-19T16:27:09Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"low"}],"updated_at":"2026-11-02T18:01:43.218519Z"}],"ghsa":[{"id":"GHSA-8xpv-h7vw-hc6h","title":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","description":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","status":"published","published":"2022-05-24T19:21:18Z","modified":"2026-08-19T18:31:45Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:10:40.943268Z"}],"nvd":[{"id":"CVE-2021-42308","description":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","status":"published","published":"2021-11-24T01:15:08.41Z","modified":"2026-08-19T17:18:02.71Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:07:01.428028Z"}]}}