CVE-2026-20937: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20937) involves the exposure of sensitive information to an unauthorized actor through Windows File Explorer in Microsoft Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local privileges can leverage this flaw to disclose sensitive data without requiring user interaction. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information). Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. The confidentiality of data is impacted (high impact on confidentiality), but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20937 for the update details and installation instructions.
CVE-2026-20937: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Description
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20937) involves the exposure of sensitive information to an unauthorized actor through Windows File Explorer in Microsoft Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local privileges can leverage this flaw to disclose sensitive data without requiring user interaction. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information). Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. The confidentiality of data is impacted (high impact on confidentiality), but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20937 for the update details and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-04T20:04:16.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20937","vendor":"Microsoft"}]
Threat ID: 69668ae4a60475309f9ae1fc
Added to database: 01/13/2026, 18:11:48 UTC
Last enriched: 07/30/2026, 23:38:58 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 187
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