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CVE-2020-11443

8.1 · HIGH

The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client.

Published May 4, 2020CWE-59EPSS 1.54%

Overview

CVE-2020-11443 is a high-severity vulnerability. It was published on May 4, 2020 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client. Standard users are able to write to this directory, and can write links to other directories on the machine. As the installer runs with SYSTEM privileges and follows these links, a user can cause the installer to delete files that otherwise cannot be deleted by the user.

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

Refsupport.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsRefsupport.zoom.us/hc/en-us/articles/360043036451Refsupport.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443Refsupport.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsRefsupport.zoom.us/hc/en-us/articles/360043036451Refsupport.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443

How CyberStrike helps

Frequently asked questions

What is CVE-2020-11443?

CVE-2020-11443 is a high-severity vulnerability. It was published on May 4, 2020 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2020-11443?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-11443?

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-2020-11443?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-11443 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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