Advisoriesby IbisMicrosoftCVE-2026-80083
Microsoft Windows Hyper-V: code execution
Fix: upgrade to 10.0.22631.7582 or later (6 fixed versions below)
Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Windows 11 Version 23H2 Product | >= 10.0.22631.0, < 10.0.22631.7582 | 10.0.22631.7582 |
| Windows 11 Version 24H2 Product | >= 10.0.26100.0, < 10.0.26100.9445 | 10.0.26100.9445 |
| Windows 11 Version 25H2 Product | >= 10.0.26200.0, < 10.0.26200.9445 | 10.0.26200.9445 |
| Windows 11 version 23H2 Product | >= 10.0.22631.0, < 10.0.22631.7582 | 10.0.22631.7582 |
| Windows 11 version 26H1 Product | >= 10.0.28000.0, < 10.0.28000.2954 | 10.0.28000.2954 |
| Windows Server 2022 Product | >= 10.0.20348.0, < 10.0.20348.5622 | 10.0.20348.5622 |
| Windows Server 2025 Product | >= 10.0.26100.0, < 10.0.26100.33438 | 10.0.26100.33438 |
| Windows Server 2025 (Server Core installation) Product | >= 10.0.26100.0, < 10.0.26100.33438 | 10.0.26100.33438 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-822