CVE-2026-50434: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 21H2
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-2026-50434) involves the exposure of sensitive information to an unauthorized actor in Windows Push Notifications on Windows 10 Version 21H2 (build 10.0.19044.0). The flaw allows an attacker with local privileges to disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An attacker with local access and limited privileges can disclose sensitive information on the affected Windows 10 Version 21H2 system. The confidentiality of data is impacted, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the provided security update from Microsoft to remediate this issue. No additional mitigation actions are required beyond applying the official patch.
CVE-2026-50434: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 21H2
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-2026-50434) involves the exposure of sensitive information to an unauthorized actor in Windows Push Notifications on Windows 10 Version 21H2 (build 10.0.19044.0). The flaw allows an attacker with local privileges to disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An attacker with local access and limited privileges can disclose sensitive information on the affected Windows 10 Version 21H2 system. The confidentiality of data is impacted, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the provided security update from Microsoft to remediate this issue. No additional mitigation actions are required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:57:47.375Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50434","vendor":"Microsoft"}]
Threat ID: 6a56769f68715ace43f09461
Added to database: 07/14/2026, 17:49:19 UTC
Last enriched: 08/13/2026, 14:54:20 UTC
Last updated: 08/27/2026, 22:52:12 UTC
Views: 52
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