Zoom Client for Meetings < 4.4.5 Vulnerability (ZSB-19002)

medium Nessus Plugin ID 168819


The remote host has an application installed that is affected by a vulnerability.


The version of Zoom Client for Meetings installed on the remote host is prior to 4.4.5. It is, therefore, affected by a vulnerability as referenced in the ZSB-19002 advisory.

- A vulnerability in the macOS Zoom and RingCentral clients could allow a remote, unauthenticated attacker to force a user to join a video call with the video camera active. The vulnerability is due to insufficient authorization controls to check which systems may communicate with the local Zoom Web server running on port 19421. An attacker could exploit this vulnerability by creating a malicious website that causes the Zoom client to automatically join a meeting set up by the attacker. Zoom implemented a new Video Preview dialog that is presented to the user before joining a meeting in Client version 4.4.5 published July 14, 2019. This dialog enables the user to join the meeting with or without video enabled and requires the user to set their desired default behavior for video. Zoom urges customers to install the latest Zoom Client release available at https://zoom.us/download. (CVE-2019-13450)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to Zoom Client for Meetings 4.4.5 or later.

See Also


Plugin Details

Severity: Medium

ID: 168819

File Name: zoom_client_ZSB-19002.nasl

Version: 1.6

Type: local

Agent: macosx

Published: 12/15/2022

Updated: 10/20/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 6.6


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2019-13450


Risk Factor: Medium

Base Score: 6.5

Temporal Score: 6.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:zoom:zoom, cpe:/a:zoom:meetings

Required KB Items: Host/local_checks_enabled, installed_sw/zoom

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/9/2019

Vulnerability Publication Date: 7/9/2019

Reference Information

CVE: CVE-2019-13450