4.4
Medium
CVE-2026-20825 Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally
Description
Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.8276 | 10.0.17763.8276 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.8276 | 10.0.17763.8276 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.8276 | 10.0.17763.8276 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.4648 | 10.0.20348.4648 |
| Windows 10 Version 21H2 10.0 | 10.0.19044.0 → < 10.0.19044.6809 | 10.0.19044.6809 |
| Windows 10 Version 22H2 10.0 | 10.0.19045.0 → < 10.0.19045.6809 | 10.0.19045.6809 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.32230 | 10.0.26100.32230 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.7623 | 10.0.26200.7623 |
| Windows 11 version 22H3 10.0 | 10.0.22631.0 → < 10.0.22631.6491 | 10.0.22631.6491 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 11 Version 23H2 10.0 | 10.0.22631.0 → < 10.0.22631.6491 | 10.0.22631.6491 |
| Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 | 10.0.25398.0 → < 10.0.25398.2092 | 10.0.25398.2092 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.7623 | 10.0.26100.7623 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.32230 | 10.0.26100.32230 |
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