CVE-2020-3952

Name: CVE-2020-3952
Creator: NVD / NIST
Published: 2020-04-10T14:15:12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 90.38%

Last modified Jun 17, 2026

CVE-2020-3952 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Under certain conditions, vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls.. CISA has confirmed active exploitation in the wild. EPSS estimates a 90.38% chance of exploitation in the next 30 days.

Description

Under certain conditions, vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

90.38%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Vmware	Vcenter Server	6.7

References

http://packetstormsecurity.com/files/157896/VMware-vCenter-Server-6.7-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2020-0006Broken Link, Vendor Advisory
http://packetstormsecurity.com/files/157896/VMware-vCenter-Server-6.7-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2020-0006Broken Link, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3952US Government Resource

Timeline

Published: Apr 10, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-3952?

Under certain conditions, vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls.

How severe is CVE-2020-3952?

CVE-2020-3952 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 90.38% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-3952?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3952?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST