Description
The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.
Published: 2021-05-26
Score: 9.8 Critical
EPSS: 94.4% High
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories

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History

Wed, 22 Oct 2025 00:15:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Wed, 29 Jan 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2021-11-03'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 29 Jan 2025 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-470
CWE-918

Subscriptions

Vmware Cloud Foundation Vcenter Server
cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2025-10-21T23:25:44.978Z

Reserved: 2021-01-04T00:00:00.000Z

Link: CVE-2021-21985

cve-icon Vulnrichment

Updated: 2024-08-03T18:30:23.663Z

cve-icon NVD

Status : Analyzed

Published: 2021-05-26T15:15:07.937

Modified: 2025-10-30T20:05:29.037

Link: CVE-2021-21985

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses