High severity · published May 4, 2020
CVE-2020-11443
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
8.1
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
II
IT Installer · Zoom
before 4.6.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11443
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-11443
Broken Link
https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-Windows
Broken Link
https://support.zoom.us/hc/en-us/articles/360043036451
Broken Link
https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443