Description
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to maintain bidirectional audio despite being expelled from an active Webex session. The vulnerability is due to a synchronization issue between meeting and media services on a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. A successful exploit could allow the attacker to maintain the audio connection of a Webex session despite being expelled.
Scores
CVSS v3
6.5
EPSS
0.0063
EPSS Percentile
70.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-662
CWE-20
Status
published
Products (3)
cisco/webex_meetings_server
3.0 maintenance_release2 (2 CPE variants)
cisco/webex_meetings_server
4.0 (3 CPE variants)
cisco/webex_meetings_server
< 3.0
Published
Nov 18, 2020
Tracked Since
Feb 18, 2026