High severity7.8NVD Advisory· Published Aug 11, 2026· Updated Aug 11, 2026
CVE-2026-66804
CVE-2026-66804
Description
Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026