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CVE-2020-3952

VMware vCenter Server Information Disclosure Vulnerability

  • Critical 9.8
  • Exploited: added to CISA KEV 3 Nov 2021

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.

Key facts

Published
10 Apr 2020
Last changed
21 Oct 2025
Assigned by
vmware
KEV added
3 Nov 2021
KEV fix due
3 May 2022
EPSS
90.384% likely to be exploited in the next 30 days, higher than 99.803% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.8CVSS 3.1, Criticalfrom CISA (ADP container)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/aVMware vCenter Server
  • vCenter Server 6.7 (embedded or external PSC) prior to 6.7u3f is affected by CVE-2020-3952 if it was upgraded from a previous release line such as 6.0 or 6.5. Clean installations of vCenter Server 6.7 (affected)

Timeline

  1. 10 Apr 2020 Published
  2. 3 Nov 2021 CVE-2020-3952 added to CISA KEV
  3. 3 Nov 2021 Added to the CISA KEV catalogue

Weakness

References