CVE-2026-62694: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-62694 is a use-after-free vulnerability in Windows Installer on Microsoft Windows 10 Version 1607 and other specified versions. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating and has been officially fixed by Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-416 (Use After Free), exists in the Windows Installer component of Microsoft Windows 10 Version 1607 and other specified versions. It allows an authorized attacker with local access to elevate their privileges by exploiting a use-after-free condition. The CVSS 3.1 base score is 7.0, reflecting high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected Windows systems. This could lead to full system compromise, including unauthorized access to sensitive data 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 updates provided by Microsoft to affected Windows versions to remediate this issue. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T20:56:21.890Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62694","vendor":"Microsoft"}]
Threat ID: 6aa044c5acd9273b49fa5fdd
Added to database: 09/08/2026, 17:24:21 UTC
Last enriched: 10/16/2026, 20:48:43 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 26
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