CVE-2020-3471CWE-20

Cisco Webex Meetings and Cisco Webex Meetings Server Unauthorized Audio Information Exposure Vulnerability

Medium · published November 18, 2020

CVSS v3.1
6.5
EPSS
2%
Percentile
77.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01756 · 77.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-11-18T17:41Z
EPSS history
Timeline
  • 18 NOV 17:41Z
    Cisco Webex Meetings and Cisco Webex Meetings Server Unauthorized Audio Information Exposure Vulnerability
    cvelistv5