This vulnerability involves a use-after-free condition (CWE-416) in the Windows Container Isolation FS Filter Driver component of Windows 10 Version 1607. An authorized local attacker could exploit this flaw to elevate their privileges, potentially gaining higher-level access on the affected system. The vulnerability is rated high severity with a CVSS 3.1 score of 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this issue.

Successful exploitation allows an authorized local attacker to elevate privileges, potentially leading to full control over the affected Windows 10 Version 1607 system. The vulnerability impacts confidentiality, integrity, and availability at a high level. There are no reports of active exploitation in the wild.

An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33098) to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.