CVE-2020-11443

Name: CVE-2020-11443
Creator: NVD / NIST
Published: 2020-05-04T14:15:13.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2020-11443 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Zoom	It Installer	< 4.6.10

References

https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsBroken Link, Vendor Advisory
https://support.zoom.us/hc/en-us/articles/360043036451Broken Link, Vendor Advisory
https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443Broken Link, Vendor Advisory
https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsBroken Link, Vendor Advisory
https://support.zoom.us/hc/en-us/articles/360043036451Broken Link, Vendor Advisory
https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443Broken Link, Vendor Advisory

Timeline

Published: May 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11443?

How severe is CVE-2020-11443?

CVE-2020-11443 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11443?

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-2020-11443?

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

Scan your code now

Source: NVD / NIST