CVE-2026-20832

Microsoft · Published January 13, 2026

7.8

CVSS v3.1

HIGH

Patch availableGet patch

Description

Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability. What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could create, modify, or delete files in the security context of the "NT AUTHORITY\SYSTEM" account.

Affected Products

Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)

CVSS 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