CVE Explorer
CVE-2026-20184
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 un
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Cisco Webex Meetings","vendor":"Cisco","versions":[{"status":"affected","version":"39.7.7"},{"status":"affected","version":"39.9"},{"status":"affected","version":"40.4.10"},{"status":"affected","version":"39.6"},{"status":"affected","version":"40.6.2"},{"status":"affected","version":"39.8.2"},{"status":"affected","version":"39.8.4"},{"status":"affected","version":"40.1"},{"status":"affected","version":"39.11"},{"status":"affected","version":"39.7.4"},{"status":"affected","version":"39.9.1"},{"status":"affected","version":"40.4"},{"status":"affected","versi…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:85646ef71b2368d90f5085625fb52f92c90c9126cea3a3ae0dcddcb993452427 · sha256:24d4dccdde2fc540… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:85646ef71b2368d90f5085625fb52f92c90c9126cea3a3ae0dcddcb993452427 · sha256:24d4dccdde2fc540… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-295","description":"Improper Certificate Validation","lang":"en","type":"cwe"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:85646ef71b2368d90f5085625fb52f92c90c9126cea3a3ae0dcddcb993452427 · sha256:24d4dccdde2fc540… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"cisco-sa-webex-cui-cert-8jSZYhWL","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-cui-cert-8jSZYhWL"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:85646ef71b2368d90f5085625fb52f92c90c9126cea3a3ae0dcddcb993452427 · sha256:24d4dccdde2fc540… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.