CVE-2020-3952
VMware vCenter Server Information Disclosure Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 90.38% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 1 June 2020
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-306
- Affected
- vmware/vcenter server
- Source
- security@vmware.com
EPSS 90.4% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-3952
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.