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CVE-2020-3361 Details

Description

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by 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. If successful, the attacker could gain the privileges of another user within the affected Webex site.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-token-zPvEjKN	CVE	Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-token-zPvEjKN	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]
CWE-287	Improper Authentication	[email protected]

Affected Products

Product	Versions
cisco webex meetings	<= 39.5.25 >= 40.1.0, <= 40.4.10 40.6.0
CPE cpe:2.3:a:cisco:webex_meetings:::::::: cpe:2.3:a:cisco:webex_meetings:40.6.0:::::::* Remediation No remediation found in references.
cisco webex meetings server	< 4.0 4.0 - 4.0 maintenance_release1 4.0 maintenance_release2 4.0 maintenance_release3
CPE cpe:2.3:a:cisco:webex_meetings_server:::::::: cpe:2.3:a:cisco:webex_meetings_server:4.0:-:::::: cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:::::: cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:::::: cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Jun 24, 2020	Initial Analysis	[email protected]