{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T10:23:24.993","vulnerabilities":[{"cve":{"id":"CVE-2020-3524","sourceIdentifier":"psirt@cisco.com","published":"2020-09-24T18:15:21.620","lastModified":"2024-11-21T05:31:14.970","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, physical attacker to break the chain of trust and load a compromised software image on an affected device. The vulnerability is due to the presence of a debugging configuration option in the affected software. An attacker could exploit this vulnerability by connecting to an affected device through the console, forcing the device into ROMMON mode, and writing a malicious pattern using that specific option on the device. A successful exploit could allow the attacker to break the chain of trust and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco."},{"lang":"es","value":"Una vulnerabilidad en Cisco IOS XE ROM Monitor (ROMMON) Software para Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, y Cisco cBR-8 Converged Broadband Routers, podría permitir a un atacante físico no autenticado romper la cadena de confianza y cargar una imagen de software comprometida en un dispositivo afectado. La vulnerabilidad es debido a la presencia de una opción de configuración de depuración en el software afectado. Un atacante podría explotar esta vulnerabilidad mediante la conexión de un dispositivo afectado a mediante la consola, forzando el dispositivo al modo ROMMON y escribiendo un patrón malicioso usando esa opción específica en el dispositivo. Una explotación con éxito podría permitir al atacante romper la cadena de confianza y cargar una imagen de software comprometida en el dispositivo afectado."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.9,"impactScore":5.9}],"cvssMetricV30":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.5,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:M/Au:N/C:C/I:C/A:C","baseScore":6.9,"accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":3.4,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-862"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*","versionEndExcluding":"16.2\\(1r\\)","matchCriteriaId":"C8F3B87A-F5B7-4D43-81A8-D67C53EBBDFA"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"6C8AED7C-DDA3-4C29-BB95-6518C02C551A"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"5419CB9F-241F-4431-914F-2659BE27BEA5"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"5720462A-BE6B-4E84-A1A1-01E80BBA86AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"E8B60888-6E2B-494E-AC65-83337661EE7D"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*","versionEndExcluding":"15.6\\(18r\\)","matchCriteriaId":"181B1A1A-572C-424F-A1DD-96363BAB235C"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-10sz-pd:-:*:*:*:*:*:*:*","matchCriteriaId":"7FCA2DB2-AE09-4A99-90C9-60AE0CD9A035"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-12cz-a:-:*:*:*:*:*:*:*","matchCriteriaId":"11B83BED-5A49-4CF0-9827-AA291D01F60E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-12cz-d:-:*:*:*:*:*:*:*","matchCriteriaId":"2C1E8937-51D9-43E6-876E-5D39AD3D32C4"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-12sz-a:-:*:*:*:*:*:*:*","matchCriteriaId":"2CA7AE63-99B9-4F28-8670-639A9B31E494"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-12sz-d:-:*:*:*:*:*:*:*","matchCriteriaId":"E858B4AB-49B1-4F1C-8722-6E6911194924"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-20sz-m:-:*:*:*:*:*:*:*","matchCriteriaId":"60DFE60A-34C5-42C3-B539-57AAA9D4F684"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-24sz-im:-:*:*:*:*:*:*:*","matchCriteriaId":"A1B25F27-6527-46F8-9C1A-4B4F79F3E6C4"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-24sz-m:-:*:*:*:*:*:*:*","matchCriteriaId":"9FE70CCD-6062-45D8-8566-7C9E237E030F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-24tz-m:-:*:*:*:*:*:*:*","matchCriteriaId":"375F9E12-A61B-4FD3-AE07-D4E686EB112A"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-4sz-a:-:*:*:*:*:*:*:*","matchCriteriaId":"D724F932-4548-429D-8CAA-E82C3435A194"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr-920-4sz-d:-:*:*:*:*:*:*:*","matchCriteriaId":"0BCC94C3-9EEF-4600-BE82-8AEDEB0F1446"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_920u-12sz-im:-:*:*:*:*:*:*:*","matchCriteriaId":"BA179D79-07E7-4721-85BB-0C740B516B1F"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*","versionEndExcluding":"16.2\\(1r\\)","matchCriteriaId":"C8F3B87A-F5B7-4D43-81A8-D67C53EBBDFA"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:*","matchCriteriaId":"FE2182E7-C813-4966-A36C-E648A9344299"},{"vulnerable":false,"criteria"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