What is CVE-2020-3959?

CVE-2020-3959 is a low-severity vulnerability in VMware Esxi, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 3.3/10. Published 2020-05-29.

How severe is CVE-2020-3959?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in VMware Esxi

CVE-2020-3959

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.

EPSS: 0.003 (22.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Vmware Esxi — versions 6.5, 6.7
Vmware Fusion
Vmware Esxi — versions 6.7 before ESXi670-202004101-SG, 6.5 before ESXi650-202005401-SG
Vmware Fusion — versions 11.x before 11.1.0
Vmware Workstation — versions 15.x before 15.1.0
Vmware Workstation

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security@vmware.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-3959?: CVE-2020-3959 is a low-severity vulnerability in VMware Esxi, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 3.3/10. Published 2020-05-29.
How severe is CVE-2020-3959?: Low severity. CVSS v3 base score is 3.3 out of 10.