Both RingCentral and Zhumu license Zooms technology. The flaw would also affect its white-label partners. RingCentral has released an update for users of its MacOS app to fix the flaw. Apple released a silent automatic update for Macs on July 10, removing the hidden Zoom web server and protecting users from the vulnerability. The update does not remove the web server installed by RingCentral or the desktop apps installed by the company’s desktop apps, but there is no way to easily remove the hidden server.”]
Source: https://www.buzzfeednews.com/article/nicolenguyen/ringcentral-and-zhumu-customers-vulnerability