CVE-2026-50431: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-50431, affects Windows 10 Version 1607 (build 10.0.14393.0) and involves an information disclosure flaw in the Windows QoS Packet Scheduler component. The flaw is categorized under CWE-200, indicating exposure of sensitive information to unauthorized actors. The CVSS v3.1 base score is 5.5 (medium severity), with an attack vector requiring local access (AV:L), low attack complexity (AC:L), and low privileges (PR:L). The vulnerability does not require user interaction and impacts confidentiality with high severity, but does not affect integrity or availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows unauthorized local actors with low privileges to gain access to sensitive information through the Windows QoS Packet Scheduler. This exposure impacts confidentiality but does not affect system integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50431 to remediate this issue.
CVE-2026-50431: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Description
Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-50431, affects Windows 10 Version 1607 (build 10.0.14393.0) and involves an information disclosure flaw in the Windows QoS Packet Scheduler component. The flaw is categorized under CWE-200, indicating exposure of sensitive information to unauthorized actors. The CVSS v3.1 base score is 5.5 (medium severity), with an attack vector requiring local access (AV:L), low attack complexity (AC:L), and low privileges (PR:L). The vulnerability does not require user interaction and impacts confidentiality with high severity, but does not affect integrity or availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows unauthorized local actors with low privileges to gain access to sensitive information through the Windows QoS Packet Scheduler. This exposure impacts confidentiality but does not affect system integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50431 to remediate this issue.
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-2026-50431","vendor":"Microsoft"}]
Threat ID: 6a56769d68715ace43f0942d
Added to database: 07/14/2026, 17:49:17 UTC
Last enriched: 08/13/2026, 14:53:56 UTC
Last updated: 08/27/2026, 11:04:02 UTC
Views: 54
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