CVEvulnerability

CVE-2026-20184

9.8 CRITICAL Published 2026-04-15 Modified 2026-10-26 Official page ↗
Status
Awaiting Analysis
Published
2026-04-15
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-295

Description

A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed an unauthenticated, remote attacker to impersonate any user within the service. This vulnerability existed because of improper certificate validation. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by connecting to a service endpoint and supplying a crafted token. A successful exploit could have allowed the attacker to gain unauthorized access to legitimate Cisco Webex services.

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

References