CVE-2019-13449

Name: CVE-2019-13449
Creator: NVD / NIST
Published: 2019-07-09T06:15:10.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.00%

Last modified Jun 17, 2026

CVE-2019-13449 is a vulnerability of currently unknown severity. In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.

Description

In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.

Metrics

EPSS Probability

2.00%

78.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Zoom	Zoom	< 4.4.2

References

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://twitter.com/zoom_us/status/1148710712241295361Third Party Advisory
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://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-2019-13449?

In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.

How severe is CVE-2019-13449?

Severity scoring for CVE-2019-13449 is pending analysis. The EPSS model estimates a 2.00% probability of exploitation in the next 30 days.

How do I fix CVE-2019-13449?

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-2019-13449?

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

Scan your code now

Source: NVD / NIST