CVE-2019-13450
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.
Does this matter?
Lower severity and a low EPSS score (3.51%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 3.51% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- ringcentral/ringcentral · zoom/zoom
- Source
- cve@mitre.org
EPSS 3.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.