Is CVE-2020-3950 in the CISA KEV catalog?

Yes. CVE-2020-3950 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-03.

What is the CVSS severity of CVE-2020-3950?

CVE-2020-3950 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-3950?

CVE-2020-3950 has an EPSS score of 7.25% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3950?

Upgrade fusion to 11.5.2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-3950

HIGHCISA KEVEPSS 94th pctl

7.8

CVSS v3

NVD

Description

VMware Fusion (11.x before 11.5.2), VMware Remote Console for Mac (11.x and prior before 11.0.1) and Horizon Client for Mac (5.x and prior before 5.4.0) contain a privilege escalation vulnerability due to improper use of setuid binaries. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC or Horizon Client is installed.

CWE-269Improper Privilege Management

How to fix

Remediation Available

fusionNVD

Affected:>= 11.0.0, < 11.5.2Fixed in:11.5.2CVE-2020-3950derived from NVD

horizon clientNVD

Affected:>= 5.0.0, < 5.4.0Fixed in:5.4.0CVE-2020-3950derived from NVD

remote consoleNVD

Affected:>= 11.0.0, < 11.0.1Fixed in:11.0.1CVE-2020-3950derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.25%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

VMware Multiple Products Privilege Escalation Vulnerability

VMware Fusion, Remote Console (VMRC) for Mac, and Horizon Client for Mac contain a privilege escalation vulnerability due to improper use of setuid binaries that allows attackers to escalate privileges to root.

Apply updates per vendor instructions.

Remediation due: 2022-05-03

References

Exploit2

Vendor Advisory1

vmware.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-269 (Improper Privilege Management) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12635	Critical	9.8	100%	-	Fix
CVE-2022-24637	Critical	9.8	99%	-	Fix
CVE-2017-5689	Critical	9.8	92%	KEV	Fix
CVE-2020-3243	Critical	9.8	88%	-	-
CVE-2024-21888	High	8.8	87%	-	-
CVE-2022-0441	Critical	9.8	85%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.