CVE-2026-50449: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
CVE-2026-50449 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 score and has been officially fixed by Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50449) involves a use-after-free condition in the Windows Runtime component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Microsoft has released an official security update that addresses this vulnerability. Users and administrators should apply the provided patch from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50449 to remediate this issue.
CVE-2026-50449: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
CVE-2026-50449 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 score and has been officially fixed by Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50449) involves a use-after-free condition in the Windows Runtime component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Microsoft has released an official security update that addresses this vulnerability. Users and administrators should apply the provided patch from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50449 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:57:47.376Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50449","vendor":"Microsoft"}]
Threat ID: 6a5676a068715ace43f09499
Added to database: 07/14/2026, 17:49:20 UTC
Last enriched: 07/14/2026, 23:33:01 UTC
Last updated: 07/14/2026, 23:33:01 UTC
Views: 2
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