Zoom Client for Meetings < 4.4.5 Vulnerability (ZSB-19001)

medium Nessus Plugin ID 168802


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-19001 advisory.

- A vulnerability in the macOS Zoom client could allow a remote, unauthenticated attacker to trigger a denial-of-service condition on a victim's system. 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 repeatedly try to join a meeting with an invalid meeting ID. The infinite loop causes the Zoom client to become inoperative and can impact performance of the system on which it runs. Zoom released version 4.4.2-hotfix of the macOS client on April 28, 2019 to address the issue. 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 . (CVE-2019-13449)

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: 168802

File Name: zoom_client_ZSB-19001.nasl

Version: 1.5

Type: local

Agent: macosx

Published: 12/15/2022

Updated: 9/15/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2019-13449


Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

Temporal Vector: CVSS:3.0/E:P/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-2019-13449