CVE-2026-50333: CWE-306: Missing Authentication for Critical Function in Microsoft Windows 10 Version 1607
Missing authentication for critical function in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50333) involves a missing authentication for a critical function in the Windows Spaceport.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local authorized access can exploit this flaw to elevate their privileges. The CVSS 3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to gain elevated privileges, potentially leading to full system compromise. The impact includes complete loss of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft Security Response Center 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
Missing authentication for critical function in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
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 in the Windows Spaceport.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local authorized access can exploit this flaw to elevate their privileges. The CVSS 3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to gain elevated privileges, potentially leading to full system compromise. The impact includes complete loss of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft Security Response Center 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: 08/13/2026, 14:34:34 UTC
Last updated: 08/28/2026, 22:52:11 UTC
Views: 92
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