CVE-2026-42973: 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 Push Notifications allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42973) involves the exposure of sensitive information to unauthorized actors through Windows Push Notifications in Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local privileges to access sensitive data without user interaction. The CVSS 3.1 base score is 5.5, indicating a medium severity level. Microsoft has released an official fix to remediate this issue.
Potential Impact
An attacker with local access and low privileges can disclose sensitive information due to improper handling of Windows Push Notifications. 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42973 to remediate this vulnerability.
CVE-2026-42973: 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 Push Notifications 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-2026-42973) involves the exposure of sensitive information to unauthorized actors through Windows Push Notifications in Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local privileges to access sensitive data without user interaction. The CVSS 3.1 base score is 5.5, indicating a medium severity level. Microsoft has released an official fix to remediate this issue.
Potential Impact
An attacker with local access and low privileges can disclose sensitive information due to improper handling of Windows Push Notifications. 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42973 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T23:43:50.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42973","vendor":"Microsoft"}]
Threat ID: 6a284cc88dd33fbd856648d3
Added to database: 06/09/2026, 17:26:32 UTC
Last enriched: 07/29/2026, 21:49:23 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 62
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.