CVE-2026-50457: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
CVE-2026-50457 is a use-after-free vulnerability in Windows Runtime on Microsoft Windows 10 Version 1809. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50457) involves a use-after-free condition in the Windows Runtime component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to elevation of privileges, impacting confidentiality, integrity, and availability at a high level. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. This could lead to full system compromise, including unauthorized access to sensitive data and system resources, and potential disruption of system availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50457 to remediate this vulnerability.
CVE-2026-50457: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
CVE-2026-50457 is a use-after-free vulnerability in Windows Runtime on Microsoft Windows 10 Version 1809. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50457) involves a use-after-free condition in the Windows Runtime component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to elevation of privileges, impacting confidentiality, integrity, and availability at a high level. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. This could lead to full system compromise, including unauthorized access to sensitive data and system resources, and potential disruption of system availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50457 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:17.977Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50457","vendor":"Microsoft"}]
Threat ID: 6a5676a268715ace43f09502
Added to database: 07/14/2026, 17:49:22 UTC
Last enriched: 07/14/2026, 23:32:35 UTC
Last updated: 07/14/2026, 23:32:35 UTC
Views: 2
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