Zoom Client for Meetings 4.x < 4.4.53932.0709 Multiple Vulnerabilities (macOS)

high Nessus Plugin ID 126590


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


The version of Zoom Client for Meetings installed on the remote macOS host is 4.x prior to 4.4.53932.0709. It is, therefore, affected by multiple vulnerabilities.

- A denial of service vulnerability exists in Zoom due to an issue with the local webserver. An unauthenticated, remote attacker can exploit this issue, by convincing a user to click on a crafted link, to cause continual focus grabs and cause the application to stop responding. (CVE_2020-13449)

- A webcam hijacking vulnerability exists in Zoom due to websites being able to interact with the Zoom webserver on localhost ports 19421 and 19424. An unauthenticated, remote attacker can exploit this, by convincing a user to visit an attacker controlled website, to force a user to join an attacker controlled video call with their video camera active. (CVE-2020-13450)
- A remote code execution vulnerability exists in the Zoom Client due to a bug with the ZoomOpener daemon.
An authenticated, remote attacker can exploit this, by convincing a user to visit a maliciously crafted launch URL, to execute arbitrary commands. (CVE-2019-13567) Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's self-reported version number.


Upgrade to Zoom Client for Meetings 4.4.53932.0709 or later.

See Also



Plugin Details

Severity: High

ID: 126590

File Name: macos_zoom_client_4_4_53932_0709.nasl

Version: 1.4

Type: local

Agent: macosx

Published: 7/10/2019

Updated: 2/5/2021

Supported Sensors: Nessus Agent

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2019-13567


Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: x-cpe:/a:zoom:zoom_client_for_meetings, cpe:/a:zoom:zoom

Required KB Items: Host/MacOSX/Version, installed_sw/zoom

Exploit Ease: No known exploits are available

Patch Publication Date: 7/9/2019

Vulnerability Publication Date: 7/8/2019

Reference Information

CVE: CVE-2019-13449, CVE-2019-13450, CVE-2019-13567

BID: 109082