| CVE Number | Vulnerability | Product | Severity | Date |
|---|---|---|---|---|
| CVE-2026-72971 | Windows Container Isolation FS Filter Driver (unionfs.sys) Tampering Vulnerability | Windows 11 | Informative | 01-09-2026 |
Technical Information
An authenticated attacker could exploit improper link resolution in the unionfs.sys to modify protected files and perform unauthorized local tampering.
Patch release date: Aug 11, 2026
Further information on this vulnerability is available at : CVE-2026-72971
Affected Software
Windows 11 version 26H1 for x64-based Systems,Windows 11 Version 26H1 for ARM64-based Systems