CVE-2020-3950VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2020-3950: VMware Multiple Products Privilege Escalation Vulnerability

Affects VMware Multiple ProductsSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 05/03/2022
EPSS: 7.3% chance of exploitation in 30 days – higher than 94% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2020-3950 (opens in a new tab)

Description

CVE-2020-3950 is a privilege escalation vulnerability affecting VMware Fusion, Remote Console (VMRC) for Mac, and Horizon Client for Mac. The flaw arises from improper use of setuid binaries, allowing attackers to escalate privileges to root. This vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

VMware Fusion, Remote Console (VMRC) for Mac, and Horizon Client for Mac contain a privilege escalation vulnerability (CVE-2020-3950) due to improper use of setuid binaries. This flaw enables attackers to escalate their privileges to root on affected systems. The vulnerability has been observed in active exploitation scenarios. No vendor advisory or patch details are included in the provided information.

Impact

Successful exploitation allows an attacker to escalate privileges to root, potentially gaining full control over the affected system. This can lead to unauthorized administrative access and compromise of system integrity. The vulnerability has been exploited in the wild, indicating active threat usage.

Mitigation

Patch status is not yet confirmed — check the VMware vendor advisory for current remediation guidance. Until official fixes are available, restrict access to affected products and monitor for suspicious activity related to privilege escalation attempts.

Weaknesses

CWE-269Improper Privilege Management (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 08:42:58 UTC

Weaknesses

References

Related threats