CVE-2026-96866: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-96866 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 affecting the Network Device Enrollment Service (NDES). It is an out-of-bounds read flaw that could allow an unauthorized attacker to cause a denial of service over a network. The vulnerability has been officially fixed by Microsoft.
CVSS v3.1
Score 7.5high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
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 is an out-of-bounds read (CWE-125) in the Network Device Enrollment Service (NDES) component of Microsoft Windows 10 Version 1607. An attacker without privileges can exploit this flaw remotely over the network to cause a denial of service condition. The CVSS v3.1 base score is 7.5, indicating high severity, with no impact on confidentiality or integrity but a significant impact on availability. Microsoft has released an official fix for affected versions.
Potential Impact
Successful exploitation results in denial of service (availability impact) on affected Windows 10 systems running vulnerable versions of NDES. There is no confidentiality or integrity impact reported. The vulnerability can be exploited remotely without authentication.
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-2026-96866 for update details and instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-23T18:05:21.202Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96866","vendor":"Microsoft"}]
Threat ID: 6ace857f2cdf04f656a004b8
Added to database: 10/13/2026, 19:24:47 UTC
Last enriched: 10/14/2026, 00:03:40 UTC
Last updated: 10/14/2026, 00:03:40 UTC
Views: 2
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