CVE Watch—

CVE-2021-21972

VMware vCenter Server Remote Code Execution Vulnerability

CVSS

—

No CVSS

EPSS

99.6%

p100

KEV

YES

Nov 3, 2021

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

99.6%EPSS · 30 days99.6%

2026-06-302026-07-16

KEV catalog record

Product

VMware / vCenter Server

Vulnerability

VMware vCenter Server Remote Code Execution Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

Nov 17, 2021

Known ransomware use

Yes

Summary description

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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-21972

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2021-22005—

100.0%

KEV—80VMware vCenter Server File Upload Vulnerability—CVE-2021-21985—

100.0%

KEV—80VMware vCenter Server Improper Input Validation Vulnerability—CVE-2023-34048—

99.9%

KEV—80VMware vCenter Server Out-of-Bounds Write Vulnerability—CVE-2020-3952—

99.8%

KEV—80VMware vCenter Server Information Disclosure Vulnerability—CVE-2024-38812—

98.9%

KEV—80VMware vCenter Server Heap-Based Buffer Overflow Vulnerability—CVE-2021-22017—

98.7%

KEV—80VMware vCenter Server Improper Access Control—