{"id":"CVE-2026-45598","aliases":["EUVD-2026-35558","GHSA-cm8c-qx86-hm82"],"status":"published","title":"Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00179,"percentile":0.07556,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362"],"published":"2026-06-09T17:05:34Z","modified":"2026-11-10T23:24:27Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 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Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45598"},{"url":"https://github.com/advisories/GHSA-cm8c-qx86-hm82"}],"sources":{"cve":[{"id":"CVE-2026-45598","title":"Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-06-09T17:05:34.964Z","modified":"2026-11-10T23:24:27.196Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-362"],"updated_at":"2026-11-11T00:50:10.062046Z"}],"euvd":[{"id":"EUVD-2026-35558","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized 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Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-06-09T17:17:28.033Z","modified":"2026-07-23T08:10:00.137Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}