Description
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – < 10.0.28000.3501 | 10.0.28000.3501 |
Advisories 2
- WID-SEC-2026-4478 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- MSRC-CVE-2026-112753 Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability Microsoft Security Response Center · Nov 10, 2026