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Windows 11 23h2 CVE-2026-20805

MEDIUM
Information Exposure (CWE-200)
2026-01-13 secure@microsoft.com
Windows 11 23h2 Windows Server 2022 23h2 Windows 10 1809 Windows 11 25h2 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows 10 1607 Windows 11 24h2 Windows 10 21h2 Windows Server 2025 Windows Server 2022 Windows 10 22h2 Microsoft Information Disclosure
5.5
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
ENISA EUVD
HIGH
qualitative

Primary rating from Vendor (microsoft).

CVSS VectorVendor: microsoft

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Added to CISA KEV
Jan 14, 2026 - 13:44 cisa
CISA KEV
CVE Published
Jan 13, 2026 - 18:16 nvd
MEDIUM 5.5

DescriptionCVE.org

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

AnalysisAI

Desktop Windows Manager on Windows 10, Windows 11, and Windows Server 2022 leaks sensitive information to local authenticated users, enabling disclosure of confidential data without modifying or disrupting system functionality. This vulnerability is confirmed actively exploited and affects multiple Windows versions with no patch currently available. An authorized attacker can exploit this with minimal complexity to extract sensitive information from the system.

Technical ContextAI

Classified as CWE-200 (Information Exposure). Affects Windows 10 1607. Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

RemediationAI

Monitor vendor advisories for a patch.

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Same weakness CWE-200 – Information Exposure

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CVE-2026-20805 vulnerability details – vuln.today
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