CRITICALCVSS 9.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2021-21972

VMware vCenter Server vSphere Client contains a remote code execution vulnerability in a vCenter Server plugin which allows an attacker with network access to port 443 to execute commands with unrestricted privileges on the underlying operating system.

Properties

Euvd product
VMware vCenter Server, VMware Cloud Foundation
Vulnerability name
VMware vCenter Server Remote Code Execution Vulnerability
First seen
2026-08-12T03:55:37+00:00
Cvss score
9.8
Epss score
0.99865
Last seen
2026-10-19T12:00:27+00:00
Due date
2021-11-17
Euvd assigner
vmware
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Euvd base score version
3.1
Score
9.8
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
VMware
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
9.8

Related Entities (45 · showing 23)

AFFECTS_PRODUCT (42 · showing 20)

→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update2:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3f:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update2c:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:b:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update1:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3j:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update2a:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3g:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update1b:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3a:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:d:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3:*:*:*:*:*:*
→[Product]cpe:2.3:a:vmware:vcenter_server:6.7:update3b:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]VMware vCenter Server Remote Code Execution Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

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CVE-2021-21972 (CVSS 9.8) — Ninja Signal Threat Intelligence | Ninja Signal