CVE-2021-38672
Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- 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
Windows Hyper-V Remote Code Execution Vulnerability
- Record
CVE-2021-38672- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-25111
Windows Hyper-V Remote Code Execution Vulnerability
- Record
EUVD-2021-25111- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c3x4-42jc-832x
Windows Hyper-V Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-40461.
Windows Hyper-V Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-40461.
- Record
GHSA-c3x4-42jc-832x- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
Windows Hyper-V Remote Code Execution Vulnerability
- Record
CVE-2021-38672- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - CVSS 2.0
- 5.2 Medium
AV:A/AC:L/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-38672 is a high vulnerability (CVSS 8.0) in Microsoft Windows 11 Version 21h2, published October 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. No source names a fixed version.