Oct 2026: Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerab
CVE-2026-97792 Published on October 13, 2026
Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability
Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Weakness Type
Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. When a resource is given a permissions setting that provides access to a wider range of actors than required, it could lead to the exposure of sensitive information, or the modification of that resource by unintended parties. This is especially dangerous when the resource is related to program configuration, execution or sensitive user data.
Products Associated with CVE-2026-97792
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Affected Versions
Microsoft Windows 11 version 23H2:- Version 10.0.22631.0 and below 10.0.22631.7652 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7652 is affected.
- Version 10.0.26100.0 and below 10.0.26100.9711 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9711 is affected.
- Version 10.0.26300.0 and below 10.0.26300.9711 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5761 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33650 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33650 is affected.