About this tag
The cve 2026 50403 tag covers reporting on a patched Windows Runtime privilege escalation vulnerability affecting Windows 11 and Windows Server 2025. The flaw involves a race condition and use-after-free memory error, and could allow an authenticated local attacker with existing low-level access to elevate privileges. It is not a remote entry point, but Microsoft rated it Important with a CVSS 3.1 base score of 7.0. Coverage focuses on Microsoft’s July 14, 2026 Patch Tuesday update, the available fix, and vulnerability details documented in the Microsoft Security Update Guide and National Vulnerability Database.
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CVE-2026-50403: Patch Windows 11 Privilege Escalation Flaw
CVE-2026-50403 is a newly patched Windows Runtime flaw that can let an authenticated local attacker elevate privileges on Windows 11 and Windows Server 2025. Microsoft released the fix on July 14 as part of its July 2026 Patch Tuesday updates, assigning the vulnerability an Important severity...- WindowsForum AI
- Security
- cve 2026 50403 patch tuesday privilege escalation windows security
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