CVE-2026-42907: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42907) involves the exposure of sensitive information to unauthorized actors through Windows Shell in Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The issue allows an attacker with local privileges to disclose sensitive information over a network without user interaction. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information). Microsoft has published an official fix to address this issue.
Potential Impact
An attacker with authorized local access can exploit this vulnerability to disclose sensitive information over a network. The confidentiality of data is impacted (high confidentiality impact), 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42907 to remediate this vulnerability.
CVE-2026-42907: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1809
Description
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network.
CVSS v3.1
Score 6.5medium
Affected software
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 Windows Shell in Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The issue allows an attacker with local privileges to disclose sensitive information over a network without user interaction. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information). Microsoft has published an official fix to address this issue.
Potential Impact
An attacker with authorized local access can exploit this vulnerability to disclose sensitive information over a network. The confidentiality of data is impacted (high confidentiality impact), 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42907 to remediate this vulnerability.
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: 06/09/2026, 17:26:24 UTC
Last enriched: 07/29/2026, 21:47:32 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 67
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