CVE-2026-62775
Medium
Description
Incorrect authorization in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose information locally.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Microsoft Windows
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- microsoft windows_11_26h110.0.28000.2704 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_11_26h1 | v < 10.0.28000.2704 | 10.0.28000.2704 |
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