{"affected":[{"affectedData":[{"product":"Comodo Antivirus","vendor":"n/a","versions":[{"status":"affected","version":"Versions 12.0.0.6810 and below"}]}],"source":"vulnreport@tenable.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:comodo:antivirus:*:*:*:*:*:*:*:*","matchCriteriaId":"EA5A70E5-7206-41FE-8EA1-4BD6E935E882","versionEndIncluding":"12.0.0.6810","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to a local Denial of Service affecting CmdVirth.exe via its LPC port \"cmdvrtLPCServerPort\". A low privileged local process can connect to this port and send an LPC_DATAGRAM, which triggers an Access Violation due to hardcoded NULLs used for Source parameter in a memcpy operation that is called for this handler. This results in CmdVirth.exe and its child svchost.exe instances to terminate."},{"lang":"es","value":"Comodo Antivirus versiones hasta la 12.0.0.6810 y anteriores, son vulnerables a una Denegación de Servicio local que afecta al archivo CmdVirth.exe por medio de su puerto LPC \"cmdvrtLPCServerPort\". Un proceso local poco privilegiado puede conectarse a este puerto y enviar un LPC_DATAGRAM, que activa una Violación de Acceso debido a NULLs embebidos en el disco duro utilizados por el parámetro Source en una operación memcpy que es llamada por este controlador. Esto resulta en finalicen las instancias del archivo CmdVirth.exe y su secundario svchost.exe."}],"id":"CVE-2019-3971","lastModified":"2026-06-17T02:35:58.527","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"LOW","cvssData":{"accessComplexity":"LOW","accessVector":"LOCAL","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":2.1,"confidentialityImpact":"NONE","integrityImpact":"NONE","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","version":"2.0"},"exploitabilityScore":3.9,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV30":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"exploitabilityScore":1.8,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2019-07-17T21:15:12.657","references":[{"source":"vulnreport@tenable.com","tags":["Exploit","Third Party Advisory"],"url":"https://www.tenable.com/security/research/tra-2019-34"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://www.tenable.com/security/research/tra-2019-34"}],"sourceIdentifier":"vulnreport@tenable.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"NVD-CWE-noinfo"}],"source":"nvd@nist.gov","type":"Primary"}]}