PT-2025-32189 · Cisco · Cisco Webex Meetings

Jean Paul Degabriele + 4 · Published 2025-08-06 · Updated 2025-08-11 · CVE-2025-20215

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

Name of the Vulnerable Software and Affected Versions Cisco Webex Meetings (affected versions not specified)

Description A vulnerability in the meeting-join functionality of Cisco Webex Meetings could allow an unauthenticated, network-proximate attacker to complete a meeting-join process in place of an intended user. This was due to client certificate validation issues. An attacker could exploit this by monitoring local wireless or adjacent networks for client-join requests and attempting to interrupt and complete the meeting-join flow as another user. A successful exploit could allow the attacker to join the meeting as another user. The Cisco Product Security Incident Response Team (PSIRT) is not aware of any malicious use of this vulnerability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

BDU:2025-09585

CVE-2025-20215

Affected Products

Cisco Webex Meetings

References · 7

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-join-yNXfqHk4 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-09585 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-20215 · Security Note
• https://twitter.com/0dayPublishing/status/1953146286510661981 · Twitter Post
• https://t.me/CVEtracker/29370 · Telegram Post
• https://twitter.com/CVEnew/status/1953137473258745904 · Twitter Post
• https://twitter.com/SystemTek_UK/status/1954969123701575977 · Twitter Post