CVE-2026-50490: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50490) involves a use-after-free condition in the Windows Installer component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with limited privileges and does not require user interaction. Successful exploitation can lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized attacker with local access and limited privileges can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.0 (high), reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users and administrators should apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50490 to mitigate the risk. No additional mitigation steps are indicated by the vendor.
CVE-2026-50490: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50490) involves a use-after-free condition in the Windows Installer component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with limited privileges and does not require user interaction. Successful exploitation can lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized attacker with local access and limited privileges can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.0 (high), reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users and administrators should apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50490 to mitigate the risk. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50490","vendor":"Microsoft"}]
Threat ID: 6a5676a668715ace43f09634
Added to database: 07/14/2026, 17:49:26 UTC
Last enriched: 08/13/2026, 15:03:39 UTC
Last updated: 08/28/2026, 22:52:11 UTC
Views: 57
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