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Windows Server 2022 CVE-2026-20937

MEDIUM
Information Exposure (CWE-200)
2026-01-13 secure@microsoft.com
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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 18:16 nvd
MEDIUM 5.5

DescriptionCVE.org

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

AnalysisAI

Windows File Explorer improperly restricts access to sensitive information, enabling authenticated local users to read confidential data without authorization. This vulnerability affects Windows 10 across multiple versions (1607, 1809, 21H2, 22H2) and requires valid user credentials and local system access to exploit. Currently, no patch is available to remediate this information disclosure issue.

Technical ContextAI

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

RemediationAI

Monitor vendor advisories for a patch.

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CVE-2026-20937 vulnerability details – vuln.today

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