CVE-2026-85794: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-85794 is an out-of-bounds read vulnerability in the Windows Routing and Remote Access Service (RRAS) affecting multiple versions of Microsoft Windows 10, including Version 1607. This flaw allows an authorized attacker with local access to disclose sensitive information. The vulnerability has a medium severity rating with a CVSS score of 5.5. An official fix is available from Microsoft.
CVSS v3.1
Score 5.5medium
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 11 Version 26H2
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 involves an out-of-bounds read in the Windows Routing and Remote Access Service (RRAS) component. It permits an authorized local attacker to read memory outside the intended bounds, potentially disclosing sensitive information. The issue affects various builds of Windows 10, including Version 1607 and later builds up to specific patched versions. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An authorized attacker with local access can exploit this vulnerability to disclose information from memory that should not be accessible, potentially leading to information leakage. There is no indication of impact on integrity or availability. The vulnerability does not require user interaction and has limited attack complexity.
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 as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85794.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-04T18:08:54.993Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85794","vendor":"Microsoft"}]
Threat ID: 6ace853a2cdf04f6569fe842
Added to database: 10/13/2026, 19:23:38 UTC
Last enriched: 10/14/2026, 03:48:56 UTC
Last updated: 10/14/2026, 03:48:56 UTC
Views: 4
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