{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-12T07:36:04.900","vulnerabilities":[{"cve":{"id":"CVE-2021-1311","sourceIdentifier":"psirt@cisco.com","published":"2021-01-13T22:15:21.630","lastModified":"2024-11-21T05:44:03.993","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the reclaim host role feature of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an authenticated, remote attacker to take over the host role during a meeting. This vulnerability is due to a lack of protection against brute forcing of the host key. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Webex Meetings Server site. A successful exploit would require the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. A successful exploit could allow the attacker to acquire or take over the host role for a meeting."},{"lang":"es","value":"Una vulnerabilidad en la funcionalidad reclaim host role de host de Cisco Webex Meetings y Cisco Webex Meetings Server, podría permitir a un atacante remoto autenticado se haga cargo de la función de host durante una reunión. Esta vulnerabilidad se debe a la falta de protección contra la fuerza bruta de la clave del host. Un atacante podría explotar esta vulnerabilidad enviando solicitudes diseñadas a un sitio vulnerable de Cisco Webex Meetings o Webex Meetings Server. Una explotación con éxito requeriría que el atacante tuviera acceso para unirse a una reunión de Webex, incluidos los vínculos y las contraseñas correspondientes para unirse a la reunión. Una explotación con éxito podría permitir al atacante adquirir o asumir el rol de anfitrión de una reunión."}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":2.5},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":2.5}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:P","baseScore":5.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.0,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-307"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-307"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*","versionEndExcluding":"40.12.0","matchCriteriaId":"E7F9AE91-0588-4752-A061-E66378DDD1C8"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*","versionEndExcluding":"3.0","matchCriteriaId":"DE22BE9B-374E-43DC-BA91-E3B9699A4C7C"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*","matchCriteriaId":"61D1081F-87E8-4E8B-BEBD-0F239E745586"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*","matchCriteriaId":"8D138973-02B0-4FEC-A646-FF1278DA1EDF"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*","matchCriteriaId":"30B55A5B-8C5E-4ECB-9C85-A8A3A3030850"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:*","matchCriteriaId":"14DBEC10-0641-441C-BE15-8F72C1762DCE"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release4:*:*:*:*:*:*","matchCriteriaId":"4646849B-8190-4798-833C-F367E28C1881"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*","matchCriteriaId":"4D6CF856-093A-4E89-A71D-50A2887C265B"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:*","matchCriteriaId":"B36A9043-0621-43CD-BFCD-66529F937859"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:*","matchCriteriaId":"8842B42E-C412-4356-9F54-DFC53B683D3E"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:*","matchCriteriaId":"D25BC647-C569-46E5-AD45-7E315EBEB784"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-brutef-hostkey-FWRMxVF","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-brutef-hostkey-FWRMxVF","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}