CVE-2020-3971

lowpriority · track · 22EPSS 0.003 · 28 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (28th) EPSS

CVSS 2.1 · low

Is it mine?

14 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 ESXi670-201904101-SG and 6.5 before ESXi650-201907101-SG), Workstation (15.x before 15.0.2), and Fusion (11.x before 11.0.2) contain a heap overflow vulnerability in the vmxnet3 virtual network adapter. A malicious actor with local access to a virtual machine with a vmxnet3 network adapter present may be able to read privileged information contained in physical memory.

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:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

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

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (14)

Products and version ranges known to be affected.

VMware Fusion≤ 11.x before 11.0.2enisa_euvdEU
VMware VMware ESXi≤ 6.5 before ESXi650-201907101-SGenisa_euvdEU
VMware VMware ESXi≤ 6.7 before ESXi670-201904101-SGenisa_euvdEU
VMware Workstation≤ 15.x before 15.0.2enisa_euvdEU
Broadcom Inc. VMWare Workstation≤ 15.0.2fstec_bduRU
Broadcom Inc. VMware Cloud Foundation≤ 3.7.2fstec_bduRU
Broadcom Inc. VMware ESXi≤ ESXi670-201904101-SGfstec_bduRU
Broadcom Inc. VMware ESXi≤ ESXi650-201907101-SGfstec_bduRU
Broadcom Inc. VMware Fusion≤ 11.0.2fstec_bduRU
vmware cloud foundation3.0 → 3.7.2nvdUScpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
vmware esxi= 6.5nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware esxi= 6.7nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware fusion11.0.0 → 11.0.2nvdUScpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware workstation15.0.0 → 15.0.2nvdUScpe: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 2020-06-25modified 2026-06-17

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+16120 more

references (7)

External citations — patches, advisories, analysis.

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