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Vulnerability record · CVE-2020-3995 · published 20 October 2020

CVE-2020-3995: Vmware esxi memory leak vulnerability

Vmware · Esxi

In VMware ESXi (6.7 before ESXi670-201908101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x before 15.1.0), Fusion (11.x before 11.1.0), the VMCI host drivers used by VMware hypervisors contain a memory leak vulnerability. A malicious actor with access to a virtual machine may be able to trigger a memory leak issue resulting in memory resource exhaustion on the hypervisor if the attack is sustained for extended periods of time.

5.3 CVSS 3.1 Medium EPSS 1.1% · top 35.0% CWE-401 · Memory leak
5.3CVSS 3.1 base score, v2 3.5
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In VMware ESXi (6.7 before ESXi670-201908101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x before 15.1.0), Fusion (11.x before 11.1.0), the VMCI host drivers used by VMware hypervisors contain a memory leak vulnerability. A malicious actor with access to a virtual machine may be able to trigger a memory leak issue resulting in memory resource exhaustion on the hypervisor if the attack is sustained for extended periods of time.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.vmware.com/security/advisories/VMSA-2020-0023.html PatchVendor Advisory
https://www.vmware.com/security/advisories/VMSA-2020-0023.html PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-3995), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.