CVE-2019-13450

Name: CVE-2019-13450
Creator: NVD / NIST
Published: 2019-07-09T06:15:10.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.49%

Last modified Jun 17, 2026

CVE-2019-13450 is a vulnerability of currently unknown severity. In the Zoom Client through 4.4.4 and RingCentral 7.0.136380.0312 on macOS, remote attackers can force a user to join a video call with the video camera active. This occurs because any web site can interact with the Zoom web server on localhost port 19421 or 19424. EPSS estimates a 3.49% chance of exploitation in the next 30 days.

Description

In the Zoom Client through 4.4.4 and RingCentral 7.0.136380.0312 on macOS, remote attackers can force a user to join a video call with the video camera active. This occurs because any web site can interact with the Zoom web server on localhost port 19421 or 19424. NOTE: a machine remains vulnerable if the Zoom Client was installed in the past and then uninstalled. Blocking exploitation requires additional steps, such as the ZDisableVideo preference and/or killing the web server, deleting the ~/.zoomus directory, and creating a ~/.zoomus plain file.

Metrics

EPSS Probability

3.49%

87.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Ringcentral	Ringcentral	7.0.136380.0312
Zoom	Zoom	<= 4.4.4

References

http://www.securityfocus.com/bid/109082Third Party Advisory, VDB Entry
https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdfVendor Advisory
https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/Vendor Advisory
https://bugs.chromium.org/p/chromium/issues/detail?id=951540Exploit, Third Party Advisory
https://medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5
https://news.ycombinator.com/item?id=20387298Issue Tracking, Third Party Advisory
https://twitter.com/moreati/status/1148548799813640193Third Party Advisory
https://twitter.com/zoom_us/status/1148710712241295361Third Party Advisory
http://www.securityfocus.com/bid/109082Third Party Advisory, VDB Entry
https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdfVendor Advisory
https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/Vendor Advisory
https://bugs.chromium.org/p/chromium/issues/detail?id=951540Exploit, Third Party Advisory
https://medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5
https://news.ycombinator.com/item?id=20387298Issue Tracking, Third Party Advisory
https://twitter.com/moreati/status/1148548799813640193Third Party Advisory
https://twitter.com/zoom_us/status/1148710712241295361Third Party Advisory

Timeline

Published: Jul 9, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-13450?

How severe is CVE-2019-13450?

Severity scoring for CVE-2019-13450 is pending analysis. The EPSS model estimates a 3.49% probability of exploitation in the next 30 days.

How do I fix CVE-2019-13450?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-13450?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST