Improper trust boundary implementation for SMB in Zoom Clients [Updated 2023-04-07]

  • ZSB-23005
  • CVE-2023-28597
  • High
  • 8.3
  • CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Zoom clients prior to 5.13.5 contain an improper trust boundary implementation vulnerability. If a victim saves a local recording to an SMB location and later opens it using a link from Zoom’s web portal, an attacker positioned on an adjacent network to the victim client could set up a malicious SMB server to respond to client requests, causing the client to execute attacker controlled executables. This could result in an attacker gaining access to a user's device and data, and remote code execution.

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.

*Changes - 2023-04-07 - Removed Android and iOS from the “Affected Products” section

  • Zoom (for Linux, macOS, and Windows) clients before version 5.13.5
  • Zoom Rooms (for Linux, macOS, and Windows) clients before version 5.13.5
  • Zoom VDI Windows Meeting clients before version 5.13.10

Reported by Zoom Offensive Security Team

Revision Date Description
1.1 04/07/2023

Removed Android and iOS from the “Affected Products

1.0 03/14/2023

Initial Publication