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CVE-2020-3950

82
FAUCET Score

CVE-2020-3950 is a privilege escalation vulnerability affecting 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) due to improper use of setuid binaries. This vulnerability has a CVSS score of 7.8 (High) and allows a local attacker with normal user privileges to escalate to root, with low attack complexity and no user interaction required. It is actively exploited in the wild, with public exploit code available in Metasploit and ExploitDB, and has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, < 11.5.2CPE matchmatch criteria
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
>= 5.0.0, < 5.4.0CPE matchmatch criteria
cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:*
>= 11.0.0, < 11.0.1CPE matchmatch criteria
cpe:2.3:a:vmware:remote_console:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.25%
Probability of exploitation in next 30 days
EPSS Percentile
93.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: VMware Fusion USB Arbitrator Setuid Privilege Escalation · Mar 17, 2020
ExploitDB: EDB-48337 · Apr 16, 2020
This CVE's current EPSS score of 0.0725 is in the 99th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

vmwarevendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/156843/VMware-Fusion-11.5.2-Privilege-Escalation.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/157079/VMware-Fusion-USB-Arbitrator-Setuid-Privilege-Escalation.html
ExploitThird Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2020-0005.html
Vendor Advisory