CVE-2020-3959

Description

VMware ESXi (6.7 before ESXi670-202004101-SG and 6.5 before ESXi650-202005401-SG), VMware Workstation (15.x before 15.1.0) and VMware Fusion (11.x before 11.1.0) contain a memory leak vulnerability in the VMCI module. A malicious actor with local non-administrative access to a virtual machine may be able to crash the virtual machine's vmx process leading to a partial denial of service.

Category

3.3
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory vmware.com
Affected: VMware VMware ESXi
Affected: VMware VMware Workstation
Affected: VMware VMware Fusion
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-3959?
CVE-2020-3959 has been scored as a low severity vulnerability.
How to fix CVE-2020-3959?
To fix CVE-2020-3959, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-3959 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-3959 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-3959?
CVE-2020-3959 affects VMware VMware ESXi, VMware VMware Workstation, VMware VMware Fusion.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.