{"id":"CVE-2026-66312","aliases":["EUVD-2026-52524","GHSA-jxgm-6gw2-5xw5"],"status":"published","title":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","description":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01099,"percentile":0.66077,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-126"],"published":"2026-08-03T22:53:10Z","modified":"2026-11-10T22:36:16Z","products":[{"vendor":"microsoft","product":"edge_chromium"},{"vendor":"microsoft","product":"microsoft edge (chromium-based)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66312","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66312"},{"url":"https://github.com/advisories/GHSA-jxgm-6gw2-5xw5"}],"sources":{"cve":[{"id":"CVE-2026-66312","title":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","description":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-08-03T22:53:10.923Z","modified":"2026-11-10T22:36:16.131Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-10T23:49:30.334266Z"}],"euvd":[{"id":"EUVD-2026-52524","description":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-08-03T22:53:10Z","modified":"2026-11-10T22:36:16Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:24:48.910061Z"}],"ghsa":[{"id":"GHSA-jxgm-6gw2-5xw5","title":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code...","description":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-08-04T00:34:54Z","modified":"2026-08-04T00:35:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T15:10:03.433591Z"}],"nvd":[{"id":"CVE-2026-66312","description":"Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.","status":"published","published":"2026-08-04T00:17:38.51Z","modified":"2026-10-23T23:10:00.157Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:12:34.643497Z"}]}}