Zoom for Windows Installer Local Privilege Escalation

  • ZSB-21008
  • CVE-2021-34412
  • Medium
  • 4.4
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

During the installation process for all versions of the Zoom Client for Meetings for Windows before 5.4.0, it is possible to launch Internet Explorer. If the installer was launched with elevated privileges such as by SCCM this can result in a local privilege escalation.

Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download.

  • Zoom Client for Meetings for Windows before version 5.4.0

Reported by the Lockheed Martin Red Team

Revision Date Description
1.0 09/30/2021

Initial Publication