{"id":"CVE-2026-70235","aliases":["EUVD-2026-99077","GHSA-mwwf-g3gx-m22m"],"status":"published","title":"Windows Event Tracing Spoofing Vulnerability","description":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0032,"percentile":0.25294,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-10-13T18:59:31Z","modified":"2026-11-10T20:34:01Z","products":[{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows 11 version 26h2"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_11_26h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70235","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70235"},{"url":"https://github.com/advisories/GHSA-mwwf-g3gx-m22m"}],"sources":{"cve":[{"id":"CVE-2026-70235","title":"Windows Event Tracing Spoofing Vulnerability","description":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.","status":"published","published":"2026-10-13T18:59:31.633Z","modified":"2026-11-10T20:34:01.95Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-10T22:18:28.707469Z"}],"euvd":[{"id":"EUVD-2026-99077","description":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.","status":"published","published":"2026-10-13T18:59:31Z","modified":"2026-11-10T20:34:01Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T21:23:24.140442Z"}],"ghsa":[{"id":"GHSA-mwwf-g3gx-m22m","title":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform...","description":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.","status":"published","published":"2026-10-13T21:34:15Z","modified":"2026-10-13T21:34:22Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:13:15.646152Z"}],"nvd":[{"id":"CVE-2026-70235","description":"Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.","status":"published","published":"2026-10-13T19:19:40.127Z","modified":"2026-10-28T16:39:57.31Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}