Workaround available
https://www.bleepingcomputer.com/news/security/cisco-warns-of-webex-for-broadworks-flaw-exposing-credentials/
Cisco warned customers today of a vulnerability in Webex for BroadWorks that could let unauthenticated attackers access credentials remotely.
Webex for BroadWorks integrates Cisco Webex's video conferencing and collaboration features with the BroadWorks unified communications platform.