CISA-confirmed known exploited vulnerability

CVE-2020-3952

VMware vCenter Server Information Disclosure Vulnerability

VMware · vCenter Server

Vulnerability details

VMware vCenter Server contains an information disclosure vulnerability in the VMware Directory Service (vmdir) when the Platform Services Controller (PSC) does not correctly implement access controls. Successful exploitation allows an attacker with network access to port 389 to extract sensitive information.

Added to CISA KEV: 2021-11-03

Ransomware campaign use: Unknown

CISA due date: 2022-05-03

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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