SB2026041707 - Improper Certificate Validation in Cisco Webex Services
Published: April 17, 2026
Security Bulletin ID
SB2026041707
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2026-20184)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper certificate validation in the integration of single sign-on (SSO) with Control Hub. A remote attacker can gain unauthorized access to legitimate Cisco Webex services.
Remediation
Install update from vendor's website.