CVE-2026-50478: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
CVE-2026-50478 is a use-after-free vulnerability in the Windows Kernel of Microsoft Windows 10 Version 1809. This vulnerability allows an authorized local attacker to elevate privileges on the affected system. The issue has been assigned a high severity rating with a CVSS score of 7.8. An official fix is available from Microsoft to address this vulnerability.
AI Analysis
Technical Summary
CVE-2026-50478 is a use-after-free vulnerability (CWE-416) in the Windows Kernel component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). This vulnerability enables an attacker with local authorized access to elevate their privileges by exploiting improper memory handling in the kernel. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this issue, as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, including unauthorized access to sensitive information and disruption of system operations.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50478 to remediate this vulnerability.
CVE-2026-50478: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
CVE-2026-50478 is a use-after-free vulnerability in the Windows Kernel of Microsoft Windows 10 Version 1809. This vulnerability allows an authorized local attacker to elevate privileges on the affected system. The issue has been assigned a high severity rating with a CVSS score of 7.8. An official fix is available from Microsoft to address this vulnerability.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-50478 is a use-after-free vulnerability (CWE-416) in the Windows Kernel component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). This vulnerability enables an attacker with local authorized access to elevate their privileges by exploiting improper memory handling in the kernel. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this issue, as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, including unauthorized access to sensitive information and disruption of system operations.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50478 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.336Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50478","vendor":"Microsoft"}]
Threat ID: 6a5676a468715ace43f095e6
Added to database: 07/14/2026, 17:49:24 UTC
Last enriched: 07/14/2026, 23:18:01 UTC
Last updated: 07/15/2026, 04:07:21 UTC
Views: 2
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