CVE-2026-20805 MEDIUM

CVE-2026-20805: Desktop Window Manager Information Disclosure Vulnerability

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

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/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 Desktop Windows Manager allows an authorized attacker to disclose information locally.

CISA mandated remediation

02CISA Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Key dates

03Disclosure timeline

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