Is CVE-2021-22040 being actively exploited?

CVE-2021-22040 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-22040?

CVE-2021-22040 has a CVSS 3.1 base score of 6.7 (MEDIUM).

CVE-2021-22040

MEDIUM · CVSS 6.7EPSS 0.7%EU EUVD

VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the XHCI USB controller. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.

Key facts

CVSS score: 6.7 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
EPSS score: 0.7% (53th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-9209)
Published: February 16, 2022
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-9209 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

vmware / cloud foundation
vmware / esxi
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and 122 more…

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

VMware ESXi 7.0 Update 3d - VMware Inc. - Common Criteria CCEVS-VR-VID-11249-2022 - archived

References

https://www.vmware.com/security/advisories/VMSA-2022-0004.html(Patch, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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