CVE-2026-20821 MEDIUM

CVE-2026-20821: Remote Procedure Call Information Disclosure Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-200 · Info exposure
Published January 13, 2026
Last update April 1, 2026

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an unauthorized attacker to disclose information locally.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
April 1, 2026 Record updated

Related vulnerabilities

04Related CVE