CVE-2020-3959

lowpriority · track · 13EPSS 0.003 · 24 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (24th) EPSS

CVSS 2.1 · low

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5

v2.02.1lowAV:L/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.13.3lowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 1.8 · impact 1.4

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.13.1lowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-401USprimaryCWE-20US

affected products (12)

Products and version ranges known to be affected.

VMware VMware ESXi≤ 6.5 before ESXi650-202005401-SGenisa_euvdEU
VMware VMware ESXi≤ 6.7 before ESXi670-202004101-SGenisa_euvdEU
VMware VMware Fusion≤ 11.x before 11.1.0enisa_euvdEU
VMware VMware Workstation≤ 15.x before 15.1.0enisa_euvdEU
Broadcom Inc. VMWare Workstation15.0.0 → 15.5.2fstec_bduRU
Broadcom Inc. VMware ESXi6.5 → ESXi650-202005401-SGоfstec_bduRU
Broadcom Inc. VMware ESXi6.7 → ESXi670-202004101-SGfstec_bduRU
Broadcom Inc. VMware Fusion11.0.0 → 11.5.2fstec_bduRU
vmware esxi= 6.5nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware esxi= 6.7nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware fusion11.0.0 → 11.1.0nvdUScpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware workstation15.0.0 → 15.1.0nvdUScpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-05-29modified 2026-06-17

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references (7)

External citations — patches, advisories, analysis.

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