CVE-2026-69482: CWE-379: Creation of Temporary File in Directory with Insecure Permissions in Microsoft Windows 10 Version 1607
Description
CVE-2026-69482 is a vulnerability in Windows 10 Version 1607 and later versions where Windows Error Reporting creates temporary files in directories with insecure permissions. This flaw allows an authorized local attacker to tamper with these files, potentially leading to elevated impact on confidentiality and integrity. The vulnerability has a high severity score of 7.1 and affects multiple Windows 10 builds prior to specific patched versions. An official fix is available from Microsoft.
CVSS v3.1
Score 7.1high
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 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 involves the creation of temporary files by Windows Error Reporting in directories that have insecure permissions, classified under CWE-379. An authorized local attacker can exploit this to tamper with these temporary files, impacting confidentiality and integrity of the system. The issue affects Windows 10 Version 1607 and subsequent builds up to certain patched versions. Microsoft has released an official fix addressing this vulnerability.
Potential Impact
An authorized local attacker can perform tampering with temporary files created by Windows Error Reporting due to insecure directory permissions. This can lead to high impact on confidentiality and integrity, but does not affect availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 versions to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69482 for detailed patch information and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:07:24.908Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69482","vendor":"Microsoft"}]
Threat ID: 6aa04500acd9273b49fa810f
Added to database: 09/08/2026, 17:25:20 UTC
Last enriched: 10/16/2026, 21:16:00 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 47
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