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CVE-2020-3952

Missing Authentication for Critical Function — is CVE-2020-3952real, exploitable, or a false positive? Here's the community ground truth.

Critical · CVSS 9.8EPSS 90.4%CISA KEVCWE-306 · Missing Authentication for Critical Function

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

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.

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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 2) — CVSS base score 9.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Diego RamírezCurated

    VMware vCenter Server Information Disclosure Vulnerability — 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. Listed in the CISA KEV catalog (added 2021-11-03) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~90%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Marco FerriCurated

    Required action for VMware vCenter Server: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-05-03. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Same weaknessCWE-306 · Missing Authentication for Critical Function.