CVEvulnerability

CVE-2020-3471

6.5 MEDIUM Published 2020-11-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-11-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-20, CWE-662

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.

Affected configurations

• cisco webex meetings server (< 3.0) • cisco webex meetings server 3.0 • cisco webex meetings server 4.0

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-662 Improper Synchronization weakness

References