CVE-2021-34420 MEDIUM

CVE-2021-34420: Zoom Windows installation executable signature bypass

Vendor Zoom Video Communications Inc
Product Zoom Client for Meetings for Windows
Published November 11, 2021
Last update September 16, 2024

CVSS base score

4.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the signature of files with .msi, .ps1, and .bat extensions. This could lead to a malicious actor installing malicious software on a customer’s computer.

Key dates

02Disclosure timeline

November 11, 2021 CVE published
September 16, 2024 Record updated