{"id":"CVE-2026-88077","aliases":[],"cve":{"records":[{"id":"CVE-2026-88077","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-09T21:47:30.202Z","published":"2026-10-29T15:21:51.829Z","modified":"2026-10-30T19:15:07.772Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-30T19:15:07.772Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T17:18:25.673Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88077","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0.0","versionEndExcluding":"154.0.4258.62"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T03:56:35.758065Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Integer overflow or wraparound in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.","score":8.8,"severity":"high","published":"2026-10-29T15:21:51.829Z","modified":"2026-10-30T19:15:07.772Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Microsoft Edge (Chromium-based)","platforms":[],"versions":[{"version":"1.0.0.0","status":"affected","lessThan":"154.0.4258.62","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-88077"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88077"],"sources":[{"name":"CVE","id":"CVE-2026-88077","modified":"2026-10-30T19:15:07.772Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-88077"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":8.8}],"sourceAffected":[],"observedAt":"2026-10-30T19:27:34.936Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:15:35.655Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T04:25:31.811Z","attemptedAt":"2026-10-30T04:25:31.811Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-30T04:25:31.772Z","attemptedAt":"2026-10-30T04:25:31.772Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T04:25:31.430Z","attemptedAt":"2026-10-30T04:25:31.430Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T04:25:31.366Z","attemptedAt":"2026-10-30T04:25:31.366Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-112939","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112939","modified":"Oct 29, 2026, 3:21:51 PM","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","checkedAt":"2026-10-30T04:25:31.430Z"},{"source":"GitHub Advisory Database","id":"GHSA-rf35-49cw-94j3","url":"https://github.com/advisories/GHSA-rf35-49cw-94j3","modified":"2026-10-29T18:31:14Z","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","checkedAt":"2026-10-30T04:25:31.772Z"},{"source":"NVD","id":"CVE-2026-88077","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88077","modified":"2026-10-30T04:18:28.003","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","checkedAt":"2026-10-30T04:25:31.811Z"}],"aiSummary":{"text":"Microsoft Edge (Chromium-based) versions before 154.0.4258.62 have an integer overflow weakness, potentially allowing an attacker to elevate privileges over a network. The vulnerability requires an attacker to have network access. The impact is an elevation of privilege.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:05:06.155Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-88077"}]}}