CVE-2021-38672

Name: CVE-2021-38672
Creator: NVD / NIST
Published: 2021-10-13T01:15:09.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 1.06%

Last modified Jun 17, 2026

CVE-2021-38672 is a high-severity vulnerability rated 8/10 on the CVSS scale. Windows Hyper-V Remote Code Execution Vulnerability. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

Windows Hyper-V Remote Code Execution Vulnerability

Metrics

CVSS 3.1

8/10

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.06%

60.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11	All versions
Microsoft	Windows Server 2022	All versions

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38672Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38672Patch, Vendor Advisory

Timeline

Published: Oct 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38672?

Windows Hyper-V Remote Code Execution Vulnerability

How severe is CVE-2021-38672?

CVE-2021-38672 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38672?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38672?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST