CVE-2026-50333: CWE-306: Missing Authentication for Critical Function in Microsoft Windows 10 Version 1607
CVE-2026-50333 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 where a missing authentication check in the Spaceport.sys driver allows a locally authorized attacker to elevate privileges. This flaw affects version 10.0.14393.0 of Windows 10 Version 1607. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50333) involves a missing authentication for a critical function within the Windows Spaceport.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). Due to this missing authentication, an attacker with local authorized access can elevate their privileges, potentially gaining higher system rights. The CVSS 3.1 base score is 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An attacker who already has local authorized access to the affected Windows 10 system can exploit this vulnerability to elevate their privileges. This can lead to full system compromise, including complete control over confidentiality, integrity, and availability of the system. 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 by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50333 to remediate this vulnerability.
CVE-2026-50333: CWE-306: Missing Authentication for Critical Function in Microsoft Windows 10 Version 1607
Description
CVE-2026-50333 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 where a missing authentication check in the Spaceport.sys driver allows a locally authorized attacker to elevate privileges. This flaw affects version 10.0.14393.0 of Windows 10 Version 1607. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50333) involves a missing authentication for a critical function within the Windows Spaceport.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). Due to this missing authentication, an attacker with local authorized access can elevate their privileges, potentially gaining higher system rights. The CVSS 3.1 base score is 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An attacker who already has local authorized access to the affected Windows 10 system can exploit this vulnerability to elevate their privileges. This can lead to full system compromise, including complete control over confidentiality, integrity, and availability of the system. 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 by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50333 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:15:10.952Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50333","vendor":"Microsoft"}]
Threat ID: 6a566f7468715ace43e6b76c
Added to database: 07/14/2026, 17:18:44 UTC
Last enriched: 07/15/2026, 01:19:08 UTC
Last updated: 07/15/2026, 03:35:47 UTC
Views: 6
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