Description
The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. This affects: VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).
Published: 2021-02-24
Score: 5.3 Medium
EPSS: 90.3% High
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

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


Tue, 04 Feb 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2022-03-07'}

ssvc

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


Subscriptions

Vmware Cloud Foundation Vcenter Server
cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2025-10-21T23:25:54.167Z

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

Link: CVE-2021-21973

cve-icon Vulnrichment

Updated: 2024-08-03T18:30:23.450Z

cve-icon NVD

Status : Analyzed

Published: 2021-02-24T17:15:15.923

Modified: 2025-10-30T20:06:18.013

Link: CVE-2021-21973

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses