{"id": "CVE-2021-1379", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2024-11-18T16:15:09.310", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\r\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities."}, {"lang": "es", "value": "Varias vulnerabilidades en las implementaciones de Cisco Discovery Protocol y Link Layer Discovery Protocol (LLDP) para los tel\u00e9fonos IP de Cisco de las series 68xx/78xx/88xx podr\u00edan permitir que un atacante adyacente no autenticado ejecute c\u00f3digo de forma remota o provoque una recarga de un tel\u00e9fono IP afectado. Estas vulnerabilidades se deben a la falta de comprobaciones cuando el tel\u00e9fono IP procesa un paquete Cisco Discovery Protocol o LLDP. Un atacante podr\u00eda explotar estas vulnerabilidades enviando un paquete Cisco Discovery Protocol o LLDP malicioso al tel\u00e9fono IP de destino. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante ejecutar c\u00f3digo en el tel\u00e9fono IP afectado o hacer que se recargue inesperadamente, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Nota: Cisco Discovery Protocol es un protocolo de capa 2. Para explotar estas vulnerabilidades, un atacante debe estar en el mismo dominio de difusi\u00f3n que el dispositivo afectado (adyacente a la capa 2). Cisco ha publicado actualizaciones de software que solucionan estas vulnerabilidades. No existen workarounds que solucionen estas vulnerabilidades."}], "lastModified": "2026-01-06T17:30:36.293", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85169CA5-F2A3-4042-9B5D-2B7CB3099A20", "versionEndExcluding": "12.8\\(1\\)"}, {"criteria": "cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:12.8\\(1\\):-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE9E23B-9337-42B4-BF3E-7D712379344C"}, {"criteria": "cpe:2.3:o:cisco:ip_conference_phone_7832_with_multiplatform_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "47DB6C05-E88E-44DA-B384-472484748C76", "versionEndExcluding": "11.3\\(2\\)"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:ip_conference_phone_7832:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6592E7FE-346E-4923-97C2-F5298DC802A3"}], "operator": "OR"}], "operator": 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