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CVE-2026-20184

Cisco Webex Meetings Certificate Validation Vulnerability PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Cisco / Cisco Webex Meetingsaffected 39.7.7; affected 39.9; affected 40.4.10; affected 39.6; affected 40.6.2; affected 39.8.2; affected 39.8.4; affected 40.1; affected 39.11; affected 39.7.4; affected 39.9.1; affected 40.4; affected 40.6; affected 39.7; affected 39.8; affected 39.8.3; affected 40.2; affected 39.10; affected 42.6; affected 42.7; affected 42.8; affected 42.9; affected 42.10; affected 42.11; affected 42.12; affected 43.1; affected 43.2; affected 43.3; affected 43.4; affected 43.4.1; affected 43.4.2; affected 43.5.0; affected 43.6.0; affected 43.6.1; affected 43.7; affected 43.8; affected 43.9; affected 43.10; affected 43.11; affected 43.12; affected 44.1; affected 44.2; affected 44.3; affected 44.4; affected 44.5; affected 44.6; affected 44.7; affected 44.8; affected 44.9; affected 44.10; affected 44.11; affected 44.12; affected 45.1; affected 45.2; affected 45.3; affected 45.4

CWE

CWE-295

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.