{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T10:14:00.648","vulnerabilities":[{"cve":{"id":"CVE-2021-34740","sourceIdentifier":"psirt@cisco.com","published":"2021-09-23T03:15:19.947","lastModified":"2024-11-21T06:11:05.760","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the WLAN Control Protocol (WCP) implementation for Cisco Aironet Access Point (AP) software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect error handling when an affected device receives an unexpected 802.11 frame. An attacker could exploit this vulnerability by sending certain 802.11 frames over the wireless network to an interface on an affected AP. A successful exploit could allow the attacker to cause a packet buffer leak. This could eventually result in buffer allocation failures, which would trigger a reload of the affected device."},{"lang":"es","value":"Una vulnerabilidad en la implementación WLAN Control Protocol (WCP) para Cisco Aironet Access Point (AP) software podría permitir a un atacante adyacente no autenticado causar una recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). Esta vulnerabilidad es debido al manejo incorrecto de errores cuando un dispositivo afectado recibe una trama 802.11 inesperada. Un atacante podría explotar esta vulnerabilidad mediante el envío de determinadas tramas 802.11 a través de la red inalámbrica a una interfaz de un AP afectado. Una explotación con éxito podría permitir al atacante causar un filtrado de búfer de paquetes. Esto podría resultar eventualmente en fallos en la asignación del búfer, lo que desencadenaría una recarga del dispositivo afectado"}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:N/I:N/A:C","baseScore":6.1,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":6.5,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-401"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:aironet_access_point_software:*:*:*:*:*:*:*:*","versionStartIncluding":"8.10.0","versionEndExcluding":"8.10.162.0","matchCriteriaId":"2688A8E4-F734-4353-889C-D4346F838AD3"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:aironet_access_point_software:17.2:*:*:*:*:*:*:*","matchCriteriaId":"58FD0CE4-DF50-41B9-9ED5-049585DA8E46"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:aironet_access_point_software:17.3:*:*:*:*:*:*:*","matchCriteriaId":"C9C881D9-8270-4413-B762-33E9661FC407"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100-4g\\/6g_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"A6F668B9-2C1D-4306-8286-35E67D0F67C7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"A2D2305B-B69E-4F74-A44E-07B3205CE9F7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"26DD41B3-1D1D-44D3-BA8E-5A66AFEE77E6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"1952B64C-4AE0-4CCB-86C5-8D1FF6A12822"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"5AAD4397-6DCF-493A-BD61-3A890F6F3AB2"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"5EB8A757-7888-4AC2-BE44-B89DB83C6C77"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"3F2F0A8E-97F6-41AC-BE67-4B2D60F9D36B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"BB9229F3-7BCE-46C4-9879-D57B5BAAE44E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1109_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"B80890A8-E3D3-462C-B125-9E9BC6525B02"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"A5A606FE-E6F1-43F9-B1CD-D9DF35FC3573"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1111x_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"0547E196-5991-4C33-823A-342542E9DFD3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:111x_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"802CBFC1-8A2F-4BF7-A1D3-00622C33BE16"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"7AFE0FC1-EEBC-42F0-88B0-4AF5B76DDD97"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"D916389F-54DB-44CB-91DD-7CE3C7059350"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:6300_series_access_points:-:*:*:*:*:*:*:*","matchCriteriaId":"6E6F57DE-E039-49D7-B240-48CBD9CACD6C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:aironet_1540:-:*:*:*:*:*:*:*","matchCriteriaId":"72BFEED4-7AD7-406F-A044-BDEA98133711"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:aironet_1542d:-:*:*:*:*:*:*:*","matchCriteriaId":"C5DB7510-2741-464A-8FC9-8419985E330F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:aironet_1542i:-:*:*:*:*:*:*:*","ma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