CVE-2021-22016

Name: CVE-2021-22016
Creator: NVD / NIST
Published: 2021-09-23T13:15:08.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.87%

Last modified Jun 17, 2026

CVE-2021-22016 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The vCenter Server contains a reflected cross-site scripting vulnerability due to a lack of input sanitization. An attacker may exploit this issue to execute malicious scripts by tricking a victim into clicking a malicious link.. EPSS estimates a 0.87% chance of exploitation in the next 30 days.

Description

The vCenter Server contains a reflected cross-site scripting vulnerability due to a lack of input sanitization. An attacker may exploit this issue to execute malicious scripts by tricking a victim into clicking a malicious link.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.87%

54.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Vmware	Cloud Foundation	>= 3.0, < 5.0
Vmware	Vcenter Server	6.7

References

https://www.vmware.com/security/advisories/VMSA-2021-0020.htmlPatch, Vendor Advisory
https://www.vmware.com/security/advisories/VMSA-2021-0020.htmlPatch, Vendor Advisory

Timeline

Published: Sep 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22016?

How severe is CVE-2021-22016?

CVE-2021-22016 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22016?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22016?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST