CVE-2026-20184
CVE-2026-20184: 1 tracked advisory record across Cisco. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Cisco
1 advisory- Advisory severityCritical9.8
Critical [CVE-2026-20184] Cisco Webex Services Certificate Validation Vulnerability
cisco-sa-webex-cui-cert-8jSZYhWLSource published Source updated
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. Cisco has addressed this vulnerability in the Cisco Webex service. However, customer action is necessary for affected organizations that are using trust anchors with their SSO integration. There are no workarounds that address this vulnerability.…
- Related products — impact not confirmed
- Webex Meetings
- Source-reported affected versions
- Scope: This vulnerability affected Cisco Webex Services, which are cloud-based, when they were configured to use trust anchors within the SSO integration with Control Hub.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
- Workarounds
- There are no workarounds that address this vulnerability.
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