{"id":"CVE-2026-50440","published":"2026-07-14T17:06:31Z","modified":"2026-10-28T20:03:14Z","title":"Windows Audio Service Elevation of Privilege Vulnerability","vendor":"Microsoft","product":"Windows 11 Version 24H2","tier":"tail","description":{"text":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service allows an authorized attacker to elevate privileges locally.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00214,"percentile":0.11687,"provenance":"source"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"},{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50440","tags":["vendor-advisory","patch"]}],"priority":{"score":7.8,"factors":[{"name":"EPSS percentile","points":2.34},{"name":"CVSS severity","points":5.46}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows 11 Version 24H2","versions":[">= 10.0.26100.0, < 10.0.26100.8875"]},{"vendor":"Microsoft","product":"Windows 11 Version 25H2","versions":[">= 10.0.26200.0, < 10.0.26200.8875"]},{"vendor":"Microsoft","product":"Windows 11 version 26H1","versions":[">= 10.0.28000.0, < 10.0.28000.2525"]}],"euvd":{"id":"EUVD-2026-43870","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-362"}}