{"id":"CVE-2026-57991","title":"Microsoft Edge (Chromium-based) Information Disclosure Vulnerability","summary":"Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-59"],"vendor":"Microsoft","product":"Microsoft Edge (Chromium-based)","affected":["edge_chromium-based >= 1.0.0.0 < 150.0.4078.48"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-06T11:31:12.247561Z"},"published":"2026-07-03","updated":"2026-09-17","sourceUpdated":"2026-09-17T22:29:22.876Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57991","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57991","label":"Microsoft Edge (Chromium-based) Information Disclosure Vulnerability"}],"tags":["cve.org"],"epss":0.01036,"epssPercentile":0.62437,"ingestedAt":"2026-09-08T17:06:31.927Z","slug":"CVE-2026-57991","body":"## Overview\n\nImproper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.\n\n## Affected\n\n- `edge_chromium-based >= 1.0.0.0 < 150.0.4078.48`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}