Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2021-21997

5.5 · MEDIUM

VMware Tools for Windows (11.x.y prior to 11.3.0) contains a denial-of-service vulnerability in the VM3DMP driver.

Published Jun 18, 2021EPSS 0.65%

Overview

CVE-2021-21997 is a medium-severity vulnerability. It was published on June 18, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

VMware Tools for Windows (11.x.y prior to 11.3.0) contains a denial-of-service vulnerability in the VM3DMP driver. A malicious actor with local user privileges in the Windows guest operating system, where VMware Tools is installed, can trigger a PANIC in the VM3DMP driver leading to a denial-of-service condition in the Windows guest operating system.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.vmware.com/security/advisories/VMSA-2021-0011.htmlRefwww.vmware.com/security/advisories/VMSA-2021-0011.html

How CyberStrike helps

Frequently asked questions

What is CVE-2021-21997?

CVE-2021-21997 is a medium-severity vulnerability. It was published on June 18, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-21997?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-21997?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-21997?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-21997 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
Watch the demo →