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CVE-2020-3971

MEDIUM
5.5
CVSS Score
Published: June 25, 2020 at 02:55 PM UTC
Updated: June 17, 2026 at 03:19 AM UTC
4 products affected across 1 vendorWorkstationCloud FoundationESXi

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cloud Foundation· VMware
95%
3.0 ≤ v < 3.7.2
Affected range stops below 3.7.2, so it looks safe — our inference, not a vendor statement
ESXi· VMware
95%
6.56.5 650-2017010016.5 650-2017030016.5 650-2017030026.5 650-2017040016.5 650-2017071016.5 650-2017071026.5 650-2017071036.5 650-2017072016.5 650-2017072026.5 650-2017072036.5 650-2017072046.5 650-2017072056.5 650-2017072066.5 650-2017072076.5 650-2017072086.5 650-2017072096.5 650-2017072106.5 650-2017072116.5 650-2017072126.5 650-2017072136.5 650-2017072146.5 650-2017072156.5 650-2017072166.5 650-2017072176.5 650-2017072186.5 650-2017072196.5 650-2017072206.5 650-2017072216.5 650-2017100016.5 650-2017120016.5 650-2018030016.5 650-2018060016.5 650-2018080016.5 650-2018100016.5 650-2018100026.5 650-2018110016.5 650-2018110026.5 650-2018113016.5 650-2019010016.5 650-2019030016.5 650-2019050016.5 before ESXi650-201907101-SG6.76.7 670-2018060016.7 670-2018070016.7 670-2018080016.7 670-2018100016.7 670-2018101016.7 670-2018101026.7 670-2018101036.7 670-2018102016.7 670-2018102026.7 670-2018102036.7 670-2018102046.7 670-2018102056.7 670-2018102066.7 670-2018102076.7 670-2018102086.7 670-2018102096.7 670-2018102106.7 670-2018102116.7 670-2018102126.7 670-2018102136.7 670-2018102146.7 670-2018102156.7 670-2018102166.7 670-2018102176.7 670-2018102186.7 670-2018102196.7 670-2018102206.7 670-2018102216.7 670-2018102226.7 670-2018102236.7 670-2018102246.7 670-2018102256.7 670-2018102266.7 670-2018102276.7 670-2018102286.7 670-2018102296.7 670-2018102306.7 670-2018102316.7 670-2018102326.7 670-2018102336.7 670-2018102346.7 670-2018110016.7 670-2019010016.7 670-2019014016.7 670-2019014026.7 670-2019014036.7 670-2019030016.7 670-2019040016.7 before ESXi670-201904101-SG
Fusion· VMware
95%
11 ≤ v < 11.0.2
Affected range stops below 11.0.2, so it looks safe — our inference, not a vendor statement
Workstation· VMware
95%
15 ≤ v < 15.0.2
Affected range stops below 15.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.vmware.com/security/advisories/VMSA-2020-0015.html

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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