CVE-2026-50486: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
CVE-2026-50486 is a use-after-free vulnerability in Windows Runtime on Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). This flaw 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-2026-50486) is a use-after-free issue classified under CWE-416 affecting Windows Runtime in Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). It permits an attacker with local authorized access to elevate their privileges due to improper memory handling. The CVSS v3.1 score is 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows a local authorized attacker to elevate privileges, potentially gaining higher system rights. The vulnerability impacts confidentiality, integrity, and availability with high severity. There are no known exploits in the wild at the time of publication.
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-2026-50486 to remediate this vulnerability.
CVE-2026-50486: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Description
CVE-2026-50486 is a use-after-free vulnerability in Windows Runtime on Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). This flaw 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-2026-50486) is a use-after-free issue classified under CWE-416 affecting Windows Runtime in Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). It permits an attacker with local authorized access to elevate their privileges due to improper memory handling. The CVSS v3.1 score is 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows a local authorized attacker to elevate privileges, potentially gaining higher system rights. The vulnerability impacts confidentiality, integrity, and availability with high severity. There are no known exploits in the wild at the time of publication.
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-2026-50486 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-2026-50486","vendor":"Microsoft"}]
Threat ID: 6a5676a468715ace43f095fb
Added to database: 07/14/2026, 17:49:24 UTC
Last enriched: 07/14/2026, 23:17:26 UTC
Last updated: 07/14/2026, 23:17:26 UTC
Views: 2
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