CVE-2026-42907: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
CVE-2026-42907 is a vulnerability in Microsoft Windows 10 Version 1809 where sensitive information can be exposed to an unauthorized actor via the Windows Shell. The issue allows an authorized attacker with local access to disclose sensitive information. A patch is available from Microsoft to address this vulnerability.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42907) involves the exposure of sensitive information to unauthorized actors through the Windows Shell component in Windows 10 Version 1809 (build 10.0.17763.0). The flaw permits an attacker with local privileges to disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 6.5, indicating a medium severity level. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to disclose sensitive information, potentially compromising confidentiality. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official security update provided by Microsoft for Windows 10 Version 1809 to remediate this vulnerability. The vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42907 contains the patch details and update instructions.
CVE-2026-42907: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
Description
CVE-2026-42907 is a vulnerability in Microsoft Windows 10 Version 1809 where sensitive information can be exposed to an unauthorized actor via the Windows Shell. The issue allows an authorized attacker with local access to disclose sensitive information. A patch is available from Microsoft to address this vulnerability.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42907) involves the exposure of sensitive information to unauthorized actors through the Windows Shell component in Windows 10 Version 1809 (build 10.0.17763.0). The flaw permits an attacker with local privileges to disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 6.5, indicating a medium severity level. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to disclose sensitive information, potentially compromising confidentiality. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official security update provided by Microsoft for Windows 10 Version 1809 to remediate this vulnerability. The vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42907 contains the patch details and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T22:35:54.968Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42907","vendor":"Microsoft"}]
Threat ID: 6a284cc08dd33fbd856646e8
Added to database: 6/9/2026, 5:26:24 PM
Last enriched: 6/9/2026, 11:11:56 PM
Last updated: 6/10/2026, 5:13:13 AM
Views: 5
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