CVE-2026-105733
Windows Hyper-V Remote Code Execution Vulnerability
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Hyper-V Remote Code Execution Vulnerability
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
- Record
CVE-2026-105733- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-1419
- Updated
- 2026-11-02
EUVDEUVD-2026-99080
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
- Record
EUVD-2026-99080- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fqrj-jvvg-x2fq
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
- Record
GHSA-fqrj-jvvg-x2fq- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.
- Record
CVE-2026-105733- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows 11 version 26h1
- microsoft windows 11 version 26h2
- microsoft windows server 2022
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
- microsoft windows 10 21h2
- microsoft windows 10 22h2
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-105733 is a high vulnerability (CVSS 8.8) in Microsoft Windows 10 Version 21h2, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.