CVE-2026-45641
High
Description
Access of resource using incompatible type ('type confusion') in Windows Hyper-V allows an unauthorized attacker to execute code locally.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Microsoft Windows
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-843CWE-843
How to fix
Update
- microsoft windows_10_21h210.0.19044.7417 or later
- microsoft windows_10_22h210.0.19045.7417 or later
- microsoft windows_11_23h210.0.22631.7219 or later
- microsoft windows_11_24h210.0.26100.8655 or later
- microsoft windows_11_25h210.0.26200.8655 or later
- microsoft windows_11_26h110.0.28000.2269 or later
- microsoft windows_server_202210.0.20348.5256 or later
- microsoft windows_server_202510.0.26100.32995 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_21h2 | v < 10.0.19044.7417 | 10.0.19044.7417 |
| microsoft windows_10_22h2 | v < 10.0.19045.7417 | 10.0.19045.7417 |
| microsoft windows_11_23h2 | v < 10.0.22631.7219 | 10.0.22631.7219 |
| microsoft windows_11_24h2 | v < 10.0.26100.8655 | 10.0.26100.8655 |
| microsoft windows_11_25h2 | v < 10.0.26200.8655 | 10.0.26200.8655 |
| microsoft windows_11_26h1 | v < 10.0.28000.2269 | 10.0.28000.2269 |
| microsoft windows_server_2022 | v < 10.0.20348.5256 | 10.0.20348.5256 |
| microsoft windows_server_2025 | v < 10.0.26100.32995 | 10.0.26100.32995 |
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