CVE-2026-42971: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
CVE-2026-42971 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 where the use of an uninitialized resource in Windows Push Notifications allows an authorized local attacker to disclose sensitive information. The vulnerability does not require user interaction and has a low attack complexity. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability involves the use of an uninitialized resource within the Windows Push Notifications component in Windows 10 Version 1607 (build 10.0.14393.0). It allows an attacker with local authorized access and low privileges to disclose sensitive information on the affected system. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The CVSS v3.1 base score is 5.5, reflecting a medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker with low privileges can exploit this vulnerability to disclose sensitive information from the affected system. There is no impact on system integrity or availability. No known exploits are reported 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-2026-42971 to remediate this vulnerability.
CVE-2026-42971: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Description
CVE-2026-42971 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 where the use of an uninitialized resource in Windows Push Notifications allows an authorized local attacker to disclose sensitive information. The vulnerability does not require user interaction and has a low attack complexity. An official fix is available from Microsoft.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the use of an uninitialized resource within the Windows Push Notifications component in Windows 10 Version 1607 (build 10.0.14393.0). It allows an attacker with local authorized access and low privileges to disclose sensitive information on the affected system. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The CVSS v3.1 base score is 5.5, reflecting a medium severity with high confidentiality impact but no integrity or availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker with low privileges can exploit this vulnerability to disclose sensitive information from the affected system. There is no impact on system integrity or availability. No known exploits are reported 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-2026-42971 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-2026-42971","vendor":"Microsoft"}]
Threat ID: 6a284cc88dd33fbd856648cd
Added to database: 6/9/2026, 5:26:32 PM
Last enriched: 6/9/2026, 10:57:03 PM
Last updated: 6/10/2026, 4:34:08 AM
Views: 2
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