CVE-2021-22040

MEDIUMCVSS 6.7/10EPSS 0.70%

Last modified

CVE-2021-22040 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
6.7/10

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

EPSS Probability
0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
VmwareCloud Foundation>= 3.0, < 3.11
VmwareCloud Foundation>= 4.0, < 4.4
VmwareFusion>= 12.0.0, < 12.2.1
VmwareWorkstation Player>= 16.0.0, < 16.2.1
VmwareWorkstation Pro>= 16.0.0, < 16.2.1
VmwareEsxi6.5
VmwareEsxi6.7
VmwareEsxi7.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22040?
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.
How severe is CVE-2021-22040?
CVE-2021-22040 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22040?
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-2021-22040?

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

Scan your code now

Source: NVD / NIST