{"id":"CVE-2026-88078","aliases":[],"cve":{"records":[{"id":"CVE-2026-88078","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-09T21:47:30.202Z","published":"2026-10-29T15:21:52.370Z","modified":"2026-10-30T19:15:06.163Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-30T19:15:06.163Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T13:46:52.296Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88078","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","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":"156.0.4314.42"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T13:37:57.479805Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Microsoft Edge (Chromium-based) Spoofing Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Improper verification of cryptographic signature in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.","score":4.3,"severity":"medium","published":"2026-10-29T15:21:52.370Z","modified":"2026-10-30T19:15:06.163Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Microsoft Edge (Chromium-based)","platforms":[],"versions":[{"version":"1.0.0.0","status":"affected","lessThan":"156.0.4314.42","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-88078"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88078"],"sources":[{"name":"CVE","id":"CVE-2026-88078","modified":"2026-10-30T19:15:06.163Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-88078"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","score":4.3}],"sourceAffected":[],"observedAt":"2026-10-30T20:01:25.958Z","kev":{"status":"not-listed","checkedAt":"2026-10-30T22:45:31.166Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T15:50:33.900Z","attemptedAt":"2026-10-30T15:50:33.900Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-30T15:50:33.900Z","attemptedAt":"2026-10-30T15:50:33.900Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T15:50:35.692Z","attemptedAt":"2026-10-30T15:50:35.692Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-30T15:50:32.778Z","attemptedAt":"2026-10-30T15:50:32.778Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-88078","url":"https://www.first.org/epss/","probability":0.00298,"percentile":0.22557,"date":"2026-10-30","checkedAt":"2026-10-30T15:50:32.778Z"},{"source":"GitHub Advisory Database","id":"GHSA-hgfw-55vg-gxmm","url":"https://github.com/advisories/GHSA-hgfw-55vg-gxmm","modified":"2026-10-29T18:31:14Z","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","checkedAt":"2026-10-30T15:50:33.900Z"},{"source":"NVD","id":"CVE-2026-88078","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88078","modified":"2026-10-30T14:17:10.467","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","checkedAt":"2026-10-30T15:50:33.900Z"},{"source":"ENISA EUVD","id":"EUVD-2026-112940","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112940","modified":"Oct 30, 2026, 1:46:52 PM","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","checkedAt":"2026-10-30T15:50:35.692Z"}],"aiSummary":{"text":"Microsoft Edge (Chromium-based) versions before 156.0.4314.42 have a spoofing vulnerability due to improper verification of cryptographic signatures, allowing unauthorized attackers to perform spoofing over a network. The vulnerability requires network access. The impact is limited to spoofing.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T10:05:36.290Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-88078"}]}}