CVE-2026-69492: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607

This vulnerability involves a heap-based buffer overflow in the Windows Partition Management Driver. An authorized attacker with local access can exploit this flaw to elevate privileges, potentially gaining higher-level permissions on the system. The issue affects multiple builds of Windows 10, including but not limited to versions starting from 10.0.14393.0 up to but not including 10.0.14393.9512, and other specified build ranges. Microsoft has published an official fix for this vulnerability.

Successful exploitation allows an authorized local attacker to elevate privileges, which can lead to full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector (C:H/I:H/A:H). No known exploits are reported in the wild at this time.

An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft to affected Windows 10 versions as soon as possible. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69492 for detailed patch information and guidance.