{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-05T13:38:26.871","vulnerabilities":[{"cve":{"id":"CVE-2020-3569","sourceIdentifier":"psirt@cisco.com","published":"2020-09-23T01:15:15.503","lastModified":"2025-10-28T13:53:47.217","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group Management Protocol (IGMP) process or make it consume available memory and eventually crash. The memory consumption may negatively impact other processes that are running on the device. These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address these vulnerabilities."},{"lang":"es","value":"Múltiples vulnerabilidades en la funcionalidad Distance Vector Multicast Routing Protocol (DVMRP) del Cisco IOS XR Software, podrían permitir a un atacante remoto no autenticado bloquear inmediatamente el Internet Group Management Protocol (IGMP) o lo haga consumir la memoria disponible y finalmente bloquearlo.&#xa0;El consumo de memoria puede afectar negativamente a otros procesos que son ejecutados en el dispositivo.&#xa0;Estas vulnerabilidades son debido al manejo incorrecto de paquetes IGMP.&#xa0;Un atacante podría explotar estas vulnerabilidades mediante el envío de un tráfico IGMP diseñado hacia un dispositivo afectado.&#xa0;Una explotación con éxito podría permitir al atacante bloquear inmediatamente el proceso IGMP o causar el agotamiento de la memoria, resultando en que otros procesos se vuelvan inestables.&#xa0;Estos procesos pueden incluir, pero no se limitan a, protocolos de enrutamiento interior y exterior. Cisco emitirá actualizaciones de software que abordan estas vulnerabilidades"}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"cisaExploitAdd":"2021-11-03","cisaActionDue":"2022-05-03","cisaRequiredAction":"Apply updates per vendor instructions.","cisaVulnerabilityName":"Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability","weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.1.4:*:*:*:*:*:*:*","matchCriteriaId":"FC06F7E7-D67F-4C91-B545-F7EB62858BA5"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.2.3:*:*:*:*:*:*:*","matchCriteriaId":"370F74EC-829D-4574-BE7D-85700E15C433"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.3.3:*:*:*:*:*:*:*","matchCriteriaId":"47F3F8E3-D93B-4BAB-8643-AFBFC36940AA"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*","matchCriteriaId":"E67F538A-3E1A-4749-BB8D-4F8043653B6E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*","matchCriteriaId":"86E05C3F-4095-4B9C-8C11-E32567EB14AC"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.6.2:*:*:*:*:*:*:*","matchCriteriaId":"B8AE8971-5003-4A39-8173-E17CE9C2523F"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.6.3:*:*:*:*:*:*:*","matchCriteriaId":"36944A2B-E4F5-41DE-AC4D-55BFA603BE5E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:7.0.2:*:*:*:*:*:*:*","matchCriteriaId":"5F70AB37-3C0B-40A8-BC37-5A79DA5F45F6"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:7.1.2:*:*:*:*:*:*:*","matchCriteriaId":"8B842317-A5DB-4890-948A-DD26B7AE2540"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:7.1.15:*:*:*:*:*:*:*","matchCriteriaId":"48928FFF-871C-4C07-8352-8C802FAD8F53"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000v:-:*:*:*:*:*:*:*","matchCriteriaId":"71BD158E-71D8-4DCA-8C09-F8AB7EF0EBDD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*","matchCriteriaId":"324C97E6-1810-404F-9F45-6240F99FF039"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*","matchCriteriaId":"57EB55BB-41B7-40A1-B6F5-142FE8AB4C16"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*","matchCriteriaId":"433F4A82-04A4-4EAA-8C19-F7581DCD8D29"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:*","matchCriteriaId":"2D5E60AB-94FF-448A-89D8-5D2197E21C74"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:*","matchCriteriaId":"FA241214-2F05-4360-9B50-385355E29CF4"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*","matchCriteriaId":"A93212A4-50AB-42E7-89A4-5FBBAEA050C3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:*","matchCriteriaId":"EDA53A61-98B3-458C-8893-61CD7D6B1E48"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:*","matchCriteriaId":"F396564E-B477-4A27-A189-CEB737552E25"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:*","matchCriteriaId":"5445CC54-ACFB-4070-AF26-F91FEAA85181"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*","matchCriteriaId":"D7AA58E5-D7E1-48CF-93FF-C60EB85B2BC7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5001:-:*:*:*:*:*:*:*","matchCriteriaId":"E2A8C028-107B-4410-BCC6-5BCB8DB63603"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5002:-:*:*:*:*:*:*:*","matchCriteriaId":"DA13FE67-F4AE-46DF-921B-3FB91BDF742B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5011:-:*:*:*:*:*:*:*","matchCriteriaId":"98622F14-CC47-45E0-85E4-A7243309487C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_520:-:*:*:*:*:*:*:*","matchCriteriaId":"5249FE7A-FAAE-42C4-9250-DF4B2009F420"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*","matchCriteriaId":"BC7AE6C1-B7C6-4056-9719-B5CFF71970AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:*","matchCriteriaId":"0A972EFE-4F7E-4BFC-8631-66A2D16B74A3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5501:se:*:*:*:*:*:*:*","matchCriteriaId":"22FE69B4-DF27-46F1-8037-4B8D1F229C6B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:*","matchCriteriaId":"7F72AEF0-EE70-40F8-B52B-1390820B87BB"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502:se:*:*:*:*:*:*:*","matchCriteriaId":"603980FE-9865-4A71-A37C-A90B7F3B72D6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:*","matchCriteriaId":"43D21B01-A754-474F-8E46-14D733AB307E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:*","matchCriteriaId":"17D6424C-972F-459C-B8F7-04FFD9F541BC"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_560:-:*:*:*:*:*:*:*","matchCriteriaId":"D4CC8256-E4F8-4DCB-B69A-40A7C5AA41E8"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_6008:-:*:*:*:*:*:*:*","matchCriteriaId":"61AF653C-DCD4-4B20-A555-71120F9A5BB9"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*","versionEndExcluding":"6.5.2","matchCriteriaId":"CED75685-A63C-4550-9820-769058BEF572"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5001:-:*:*:*:*:*:*:*","matchCriteriaId":"E2A8C028-107B-4410-BCC6-5BCB8DB63603"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5002:-:*:*:*:*:*:*:*","matchCriteriaId":"DA13FE67-F4AE-46DF-921B-3FB91BDF742B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5011:-:*:*:*:*:*:*:*","matchCriteriaId":"98622F14-CC47-45E0-85E4-A7243309487C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_520:-:*:*:*:*:*:*:*","matchCriteriaId":"5249FE7A-FAAE-42C4-9250-DF4B2009F420"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*","matchCriteriaId":"BC7AE6C1-B7C6-4056-9719-B5CFF71970AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:*","matchCriteriaId":"0A972EFE-4F7E-4BFC-8631-66A2D16B74A3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5501:se:*:*:*:*:*:*:*","matchCriteriaId":"22FE69B4-DF27-46F1-8037-4B8D1F229C6B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:*","matchCriteriaId":"7F72AEF0-EE70-40F8-B52B-1390820B87BB"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502:se:*:*:*:*:*:*:*","matchCriteriaId":"603980FE-9865-4A71-A37C-A90B7F3B72D6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:*","matchCriteriaId":"43D21B01-A754-474F-8E46-14D733AB307E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:*","matchCriteriaId":"17D6424C-972F-459C-B8F7-04FFD9F541BC"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_560:-:*:*:*:*:*:*:*","matchCriteriaId":"D4CC8256-E4F8-4DCB-B69A-40A7C5AA41E8"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_6008:-:*:*:*:*:*:*:*","matchCriteriaId":"61AF653C-DCD4-4B20-A555-71120F9A5BB9"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.1.4:*:*:*:*:*:*:*","matchCriteriaId":"FC06F7E7-D67F-4C91-B545-F7EB62858BA5"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*","matchCriteriaId":"E67F538A-3E1A-4749-BB8D-4F8043653B6E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.4.3:*:*:*:*:*:*:*","matchCriteriaId":"4132A8AA-008B-49DA-AA5C-EB39CC65A2E9"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs:-:*:*:*:*:*:*:*","matchCriteriaId":"4B051AF4-592A-4201-9DD3-8683C1847A00"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_16-slot_line_card_chassis:-:*:*:*:*:*:*:*","matchCriteriaId":"2A5D5476-202C-476C-BC43-C0A963C99079"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_16-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"B0F7E3D1-B738-4B69-AB38-3A273F454B9A"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_4-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"B2039DB3-F6BA-434D-A395-41DF7B641E4D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_8-slot_line_card_chassis:-:*:*:*:*:*:*:*","matchCriteriaId":"C078ABAD-0E35-481F-8096-FDD40451A318"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_8-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"A8A8B9BF-E548-4CD9-AEC0-7030B89C4A32"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_fabric_card_chassis:-:*:*:*:*:*:*:*","matchCriteriaId":"941333EC-86D4-43AC-BD9A-D286B2276C95"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_line_card_chassis_\\(dual\\):-:*:*:*:*:*:*:*","matchCriteriaId":"CD07CEAB-98E4-4FEE-BFA4-ADA520F7A61F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_line_card_chassis_\\(multi\\):-:*:*:*:*:*:*:*","matchCriteriaId":"DE33AF1E-5E5C-43A1-B2E3-28E823C47E99"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-1_multishelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"5BBA0BE4-ED73-4B8C-BE53-5A2AB76981D0"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-3_16-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"76F8EEEF-085A-49A5-A50E-24922B300F75"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-3_4-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"10698948-E6E0-4C9B-9CB9-3626E4076336"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-3_8-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"40EF0D7E-FB4E-433A-A983-34E44E790542"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-3_multishelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"15448B60-0A19-477C-A08A-17578CF7C92C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-8\\/s-b_crs:-:*:*:*:*:*:*:*","matchCriteriaId":"D31F6ED1-B20E-44CA-A74B-9D767EDF045F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-8\\/scrs:-:*:*:*:*:*:*:*","matchCriteriaId":"4BDEC7F0-D4D5-45F0-89A4-49C596318C01"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-x:-:*:*:*:*:*:*:*","matchCriteriaId":"62F5E007-0CB6-424C-9AE8-01618C8C44E0"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-x_16-slot_single-shelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"16770F6C-539D-4B65-9C52-60F008C283D2"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs-x_multishelf_system:-:*:*:*:*:*:*:*","matchCriteriaId":"B4F47E9F-D7BA-49B9-8070-1BC610B6AE2D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:crs_performance_route_processor:-:*:*:*:*:*:*:*","matchCriteriaId":"A6D383DA-04D7-4789-B7F7-B31FD645BA8F"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dvmrp-memexh-dSmpdvfz","source":"psirt@cisco.com","tags":["Mitigation","Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dvmrp-memexh-dSmpdvfz","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3569","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}]}}]}