{"id":"CVE-2026-50521","aliases":["EUVD-2026-41137","GHSA-q4g4-rw2v-x4v7"],"status":"published","title":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","description":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00822,"percentile":0.57792,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-07-01T20:14:43Z","modified":"2026-11-10T23:24:47Z","products":[{"vendor":"microsoft","product":"edge_chromium"},{"vendor":"microsoft","product":"microsoft edge (chromium-based)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50521","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50521"},{"url":"https://github.com/advisories/GHSA-q4g4-rw2v-x4v7"}],"sources":{"cve":[{"id":"CVE-2026-50521","title":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","description":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-07-01T20:14:43.695Z","modified":"2026-11-10T23:24:47.1Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T00:50:10.599584Z"}],"euvd":[{"id":"EUVD-2026-41137","description":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-07-01T20:14:43Z","modified":"2026-11-10T23:24:47Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:24:45.332412Z"}],"ghsa":[{"id":"GHSA-q4g4-rw2v-x4v7","title":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code...","description":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-07-01T21:36:20Z","modified":"2026-07-01T21:36:26Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:09:10.245383Z"}],"nvd":[{"id":"CVE-2026-50521","description":"Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-07-01T21:17:03.037Z","modified":"2026-10-25T16:10:00.147Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:27.199837Z"}]}}