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CVE-2019-5521

9.6 · CRITICAL

VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201903001), Workstation (15.x before 15.0.3 and 14.x before 14.1.6) and Fusion (11.x before 11.0.3 and 10.x before 10.1.6) contai…

Published Sep 20, 2019CWE-125EPSS 1.63%

Overview

CVE-2019-5521 is a critical-severity vulnerability. It was published on September 20, 2019 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201903001), Workstation (15.x before 15.0.3 and 14.x before 14.1.6) and Fusion (11.x before 11.0.3 and 10.x before 10.1.6) contain an out-of-bounds read vulnerability in the pixel shader functionality. Successful exploitation of this issue may lead to information disclosure or may allow attackers with normal user privileges to create a denial-of-service condition on the host. Exploitation of this issue require an attacker to have access to a virtual machine with 3D graphics enabled. It is not enabled by default on ESXi and is enabled by default on Workstation and Fusion.

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.talosintelligence.com/vulnerability_reports/TALOS-2019-0757Refwww.vmware.com/security/advisories/VMSA-2019-0012.htmlRefwww.talosintelligence.com/vulnerability_reports/TALOS-2019-0757Refwww.vmware.com/security/advisories/VMSA-2019-0012.html

How CyberStrike helps

Frequently asked questions

What is CVE-2019-5521?

CVE-2019-5521 is a critical-severity vulnerability. It was published on September 20, 2019 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2019-5521?

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2019-5521?

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-2019-5521?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-5521 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.

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