CVE-2026-42972: 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 Hyper-V allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42972) affects Windows 10 Version 1607 (build 10.0.14393.0) and involves the exposure of sensitive information to an unauthorized actor through Windows Hyper-V. The flaw allows an attacker with local privileges to disclose sensitive data without user interaction. The CVSS 3.1 base score is 5.5, reflecting medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker with local privileges can disclose sensitive information, potentially compromising confidentiality. There is no impact on integrity or availability. The vulnerability does not require user interaction and has a low attack complexity.
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-2026-42972 to remediate this vulnerability.
CVE-2026-42972: 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 Hyper-V allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42972) affects Windows 10 Version 1607 (build 10.0.14393.0) and involves the exposure of sensitive information to an unauthorized actor through Windows Hyper-V. The flaw allows an attacker with local privileges to disclose sensitive data without user interaction. The CVSS 3.1 base score is 5.5, reflecting medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker with local privileges can disclose sensitive information, potentially compromising confidentiality. There is no impact on integrity or availability. The vulnerability does not require user interaction and has a low attack complexity.
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-2026-42972 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T23:43:50.744Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42972","vendor":"Microsoft"}]
Threat ID: 6a284cc88dd33fbd856648d0
Added to database: 06/09/2026, 17:26:32 UTC
Last enriched: 08/14/2026, 13:21:17 UTC
Last updated: 09/13/2026, 22:01:34 UTC
Views: 85
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