CVE-2026-85868: CWE-416: Use After Free in Microsoft Windows 10 Version 1607

This vulnerability (CVE-2026-85868) involves a use-after-free condition in the Windows Common Log File System Driver. An authorized attacker with local access can exploit this flaw to elevate privileges, potentially gaining higher system rights. The issue affects multiple Windows 10 versions, including Version 1607 and later builds up to specific update versions. Microsoft has published an official fix to address this vulnerability.

Successful exploitation of this vulnerability allows a local attacker with authorized access to elevate their privileges, potentially gaining administrative control over the affected system. This can lead to full system compromise, including the ability to execute arbitrary code with elevated rights, modify system configurations, or bypass security controls.

An official fix from Microsoft is available for this vulnerability. Users and administrators should apply the security updates provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85868 for detailed patch information and update instructions.