CVE-2020-3471

MEDIUM

Cisco Webex Meetings - SSRF

Title source: llm
STIX 2.1

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