CVE-2026-50326: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
CVE-2026-50326 is a use-after-free vulnerability in the Windows Unified Consent System on Microsoft Windows 10 Version 21H2. This vulnerability allows an authorized local attacker to elevate privileges. The issue has 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-2026-50326 is a use-after-free vulnerability (CWE-416) affecting Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). The flaw exists in the Windows Unified Consent System and can be exploited by an authorized local attacker to elevate privileges. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this issue, as documented 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 information and the ability to execute arbitrary code with elevated rights.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate the issue. No additional mitigation steps are required beyond applying the official patch.
CVE-2026-50326: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Description
CVE-2026-50326 is a use-after-free vulnerability in the Windows Unified Consent System on Microsoft Windows 10 Version 21H2. This vulnerability allows an authorized local attacker to elevate privileges. The issue has 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-2026-50326 is a use-after-free vulnerability (CWE-416) affecting Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). The flaw exists in the Windows Unified Consent System and can be exploited by an authorized local attacker to elevate privileges. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this issue, as documented 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 information and the ability to execute arbitrary code with elevated rights.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate the issue. No additional mitigation steps are required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:15:10.951Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50326","vendor":"Microsoft"}]
Threat ID: 6a56768f68715ace43f08c44
Added to database: 07/14/2026, 17:49:03 UTC
Last enriched: 07/15/2026, 00:34:02 UTC
Last updated: 07/15/2026, 00:34:02 UTC
Views: 2
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