CVE-2026-50293: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
CVE-2026-50293 is a use-after-free vulnerability in the Windows Internal Task Bar component of Microsoft Windows 10 Version 21H2. 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-2026-50293 is a use-after-free vulnerability (CWE-416) affecting the Windows Internal Task Bar in Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). This vulnerability enables an attacker with local authorized access to elevate their privileges, potentially gaining higher system rights. The vulnerability has a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue, as detailed in their security advisory.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 10 Version 21H2 system. Successful exploitation could lead to full control over the system, impacting confidentiality, integrity, and availability of the system resources.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50293 to remediate this issue.
CVE-2026-50293: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Description
CVE-2026-50293 is a use-after-free vulnerability in the Windows Internal Task Bar component of Microsoft Windows 10 Version 21H2. 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-2026-50293 is a use-after-free vulnerability (CWE-416) affecting the Windows Internal Task Bar in Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). This vulnerability enables an attacker with local authorized access to elevate their privileges, potentially gaining higher system rights. The vulnerability has a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue, as detailed in their security advisory.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 10 Version 21H2 system. Successful exploitation could lead to full control over the system, impacting confidentiality, integrity, and availability of the system resources.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50293 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T17:30:16.974Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50293","vendor":"Microsoft"}]
Threat ID: 6a566f7268715ace43e6b6e3
Added to database: 07/14/2026, 17:18:42 UTC
Last enriched: 07/15/2026, 01:32:39 UTC
Last updated: 07/15/2026, 01:32:39 UTC
Views: 2
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