title: Update package downgrade in Zoom Client for Meetings for Windows
description: The Zoom Client for Meetings for Windows before version 5.10.0 and Zoom Rooms for Conference Room for Windows before version 5.10.0, fails to properly check the installation version during the update process. This issue could be used in a more sophisticated attack to trick a user into downgrading their Zoom client to a less secure version.
problem types: Use of Less Trusted Source
affected:
{
product: Zoom Client for Meetings for Windows
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
{
product: Zoom Rooms for Conference Room for Windows
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
version: 3.1
]