CVE-2026-20182

{"id": "CVE-2026-20182", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20182", "role": "CISA Coordinator", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-14T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.9}]}, "affected": [{"source": "psirt@cisco.com", "affectedData": [{"vendor": "Cisco", "product": "Cisco Catalyst SD-WAN Controller", "versions": [{"status": "affected", "version": "20.6.4"}, {"status": "affected", "version": "20.9.2"}, {"status": "affected", "version": "20.3.6"}, {"status": "affected", "version": "20.7.2"}, {"status": "affected", "version": "20.7.1"}, {"status": "affected", "version": "20.5.1"}, {"status": "affected", "version": "20.6.2"}, {"status": "affected", "version": "19.3.0"}, {"status": "affected", "version": "20.6.1"}, {"status": "affected", "version": "17.2.4"}, {"status": "affected", "version": "18.2.0"}, {"status": "affected", "version": "18.4.6"}, {"status": "affected", "version": "19.1.0"}, {"status": "affected", "version": "19.2.4"}, {"status": "affected", "version": "19.2.929"}, {"status": "affected", "version": "18.3.8"}, {"status": "affected", "version": "18.4.303"}, {"status": "affected", "version": "18.3.7"}, {"status": "affected", "version": "18.4.1"}, {"status": "affected", "version": "19.2.097"}, {"status": "affected", "version": "19.2.0"}, {"status": "affected", "version": "19.2.099"}, {"status": "affected", "version": "18.3.6"}, {"status": "affected", "version": "20.4.2"}, {"status": "affected", "version": "19.0.0"}, {"status": "affected", "version": "20.9.1"}, {"status": "affected", "version": "20.3.5"}, {"status": "affected", "version": "20.3.1"}, {"status": "affected", "version": "18.3.5"}, {"status": "affected", "version": "20.6.3"}, {"status": "affected", "version": "18.4.3"}, {"status": "affected", "version": "18.4.4"}, {"status": "affected", "version": "18.3.3"}, {"status": "affected", "version": "17.2.8"}, {"status": "affected", "version": "20.8.1"}, {"status": "affected", "version": "19.2.32"}, {"status": "affected", "version": "19.2.2"}, {"status": "affected", "version": "17.2.5"}, {"status": "affected", "version": "18.4.0"}, {"status": "affected", "version": "20.4.1.1"}, {"status": "affected", "version": "20.1.3"}, {"status": "affected", "version": "20.1.2"}, {"status": "affected", "version": "17.2.10"}, {"status": "affected", "version": "19.2.098"}, {"status": "affected", "version": "20.1.1"}, {"status": "affected", "version": "17.2.6"}, {"status": "affected", "version": "19.2.1"}, {"status": "affected", "version": "18.3.4"}, {"status": "affected", "version": "20.4.1"}, {"status": "affected", "version": "17.2.9"}, {"status": "affected", "version": "19.2.31"}, {"status": "affected", "version": "19.0.1a"}, {"status": "affected", "version": "18.3.0"}, {"status": "affected", "version": "17.2.7"}, {"status": "affected", "version": "18.4.5"}, {"status": "affected", "version": "20.3.4"}, {"status": "affected", "version": "20.3.3"}, {"status": "affected", "version": "20.4.1.2"}, {"status": "affected", "version": "20.3.2"}, {"status": "affected", "version": "18.3.1"}, {"status": "affected", "version": "20.1.12"}, {"status": "affected", "version": "19.2.3"}, {"status": "affected", "version": "20.10.1"}, {"status": "affected", "version": "20.6.5"}, {"status": "affected", "version": "20.3.7"}, {"status": "affected", "version": "20.9.3"}, {"status": "affected", "version": "20.11.1"}, {"status": "affected", "version": "20.6.3.2"}, {"status": "affected", "version": "20.4.2.3"}, {"status": "affected", "version": "20.3.5.1"}, {"status": "affected", "version": "20.3.4.3"}, {"status": "affected", "version": "20.9.3.1"}, {"status": "affected", "version": "20.6.4.1"}, {"status": "affected", "version": "20.3.3.2"}, {"status": "affected", "version": "20.6.5.2"}, {"status": "affected", "version": "20.3.7.1"}, {"status": "affected", "version": "20.11.1.1"}, {"status": "affected", "version": "20.10.1.1"}, {"status": "affected", "version": "20.6.1.2"}, {"status": "affected", "version": "20.1.3.1"}, {"status": "affected", "version": "20.9.2.2"}, {"status": "affected", "version": "20.6.5.3"}, {"status": "affected", "version": "20.6.3.3"}, {"status": "affected", "version": "20.3.7.2"}, {"status": "affected", "version": "20.6.5.4"}, {"status": "affected", "version": "20.9.2.3"}, {"status": "affected", "version": "20.9.4"}, {"status": "affected", "version": "20.12.1"}, {"status": "affected", "version": "20.3.8"}, {"status": "affected", "version": "20.6.6"}, {"status": "affected", "version": "20.12.2"}, {"status": "affected", "version": "20.13.1"}, {"status": "affected", "version": "20.9.5"}, {"status": "affected", "version": "20.12.3"}, {"status": "affected", "version": "20.6.7"}, {"status": "affected", "version": "20.9.5.1"}, {"status": "affected", "version": "20.14.1"}, {"status": "affected", "version": "20.12.3.1"}, {"status": "affected", "version": "20.12.4"}, {"status": "affected", "version": "20.15.1"}, {"status": "affected", "version": "20.9.6"}, {"status": "affected", "version": "20.6.8"}, {"status": "affected", "version": "20.16.1"}, {"status": "affected", "version": "20.9.5.3"}, {"status": "affected", "version": "20.12.4.1"}, {"status": "affected", "version": "20.15.2"}, {"status": "affected", "version": "20.12.5"}, {"status": "affected", "version": "20.9.7"}, {"status": "affected", "version": "20.15.3"}, {"status": "affected", "version": "20.12.5.1"}, {"status": "affected", "version": "20.12.5.2"}, {"status": "affected", "version": "20.15.4"}, {"status": "affected", "version": "20.9.7.1"}, {"status": "affected", "version": "20.12.6"}, {"status": "affected", "version": "20.9.8"}, {"status": "affected", "version": "20.15.4.1"}, {"status": "affected", "version": "20.15.4.2"}, {"status": "affected", "version": "20.12.5.3"}, {"status": "affected", "version": "20.12.6.1"}, {"status": "affected", "version": "20.9.8.2"}, {"status": "affected", "version": "20.15.5"}, {"status": "affected", "version": "20.12.7"}, {"status": "affected", "version": "20.9.9"}, {"status": "affected", "version": "20.15.5.1"}, {"status": "affected", "version": "20.15.4.3"}, {"status": "affected", "version": "20.15.4.5"}, {"status": "affected", "version": "20.15.5.3"}, {"status": "affected", "version": "20.12.7.2"}, {"status": "affected", "version": "20.9.9.2"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Catalyst SD-WAN Manager", "versions": [{"status": "affected", "version": "20.1.12"}, {"status": "affected", "version": "19.2.1"}, {"status": "affected", "version": "18.4.4"}, {"status": "affected", "version": "18.4.5"}, {"status": "affected", "version": "20.1.1.1"}, {"status": "affected", "version": "20.1.1"}, {"status": "affected", "version": "19.2.099"}, {"status": "affected", "version": "18.3.6"}, {"status": "affected", "version": "18.3.7"}, {"status": "affected", "version": "19.2.0"}, {"status": "affected", "version": "19.1.0"}, {"status": "affected", "version": "18.4.303"}, {"status": "affected", "version": "19.2.098"}, {"status": "affected", "version": "18.3.6.1"}, {"status": "affected", "version": "18.2.0"}, {"status": "affected", "version": "17.2.8"}, {"status": "affected", "version": "18.3.3.1"}, {"status": "affected", "version": "18.4.0"}, {"status": "affected", "version": "18.3.1"}, {"status": "affected", "version": "17.2.6"}, {"status": "affected", "version": "17.2.9"}, {"status": "affected", "version": "17.2.5"}, {"status": "affected", "version": "18.4.0.1"}, {"status": "affected", "version": "18.3.3"}, {"status": "affected", "version": "18.3.0"}, {"status": "affected", "version": "19.2.3"}, {"status": "affected", "version": "18.4.501_ES"}, {"status": "affected", "version": "20.1.2"}, {"status": "affected", "version": "19.2.929"}, {"status": "affected", "version": "19.2.31"}, {"status": "affected", "version": "20.3.2"}, {"status": "affected", "version": "19.2.4"}, {"status": "affected", "version": "19.2.4.0.9"}, {"status": "affected", "version": "20.1.3.1"}], "defaultStatus": "unknown"}]}], "published": "2026-05-14T17:16:19.387", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk", "tags": ["Not Applicable"], "source": "psirt@cisco.com"}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20182", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The section of this advisory includes Show Control Connections guidance to help with system checks. \r\n\r\nA vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.\r\nThis vulnerability exists because the peering authentication mechanism in an affected system is not working properly. An attacker could exploit this vulnerability by sending crafted requests to the affected system. A successful exploit could allow the attacker to log in to an affected Cisco Catalyst SD-WAN Controller as an internal, high-privileged, non-root user account. Using this account, the attacker could access NETCONF, which would then allow the attacker to manipulate network configuration for the SD-WAN fabric."}, {"lang": "es", "value": "Mayo de 2026: Este aviso de seguridad proporciona los detalles y la informaci\u00f3n de la soluci\u00f3n para una vulnerabilidad que fue descubierta y solucionada despu\u00e9s de que la fuera divulgada en febrero de 2026. Este nuevo aviso es para una nueva vulnerabilidad en el establecimiento de la conexi\u00f3n de control. La secci\u00f3n de este aviso incluye orientaci\u00f3n sobre \u2019Show Control Connections\u2019 para ayudar con las comprobaciones del sistema. \n\nUna vulnerabilidad en la autenticaci\u00f3n de emparejamiento en Cisco Catalyst SD-WAN Controller, anteriormente SD-WAN vSmart, y Cisco Catalyst SD-WAN Manager, anteriormente SD-WAN vManage, podr\u00eda permitir a un atacante remoto no autenticado eludir la autenticaci\u00f3n y obtener privilegios administrativos en un sistema afectado.\nEsta vulnerabilidad existe porque el mecanismo de autenticaci\u00f3n de emparejamiento en un sistema afectado no funciona correctamente. Un atacante podr\u00eda explotar esta vulnerabilidad enviando solicitudes manipuladas al sistema afectado. Un exploit exitoso podr\u00eda permitir al atacante iniciar sesi\u00f3n en un Cisco Catalyst SD-WAN Controller afectado como una cuenta de usuario interna, con altos privilegios y no root. Usando esta cuenta, el atacante podr\u00eda acceder a NETCONF, lo que luego permitir\u00eda al atacante manipular la configuraci\u00f3n de red para la estructura SD-WAN."}], "lastModified": "2026-10-26T14:10:00.130", "cisaActionDue": "2026-05-17", "cisaExploitAdd": "2026-05-14", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5021D679-E23A-4D7F-B3B6-D664634A639C", "versionEndExcluding": "20.9.9.1"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "26022018-2273-4589-BE4F-AD92DA31CB58", "versionEndExcluding": "20.12.5.4", "versionStartIncluding": "20.10"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FDA5CA36-86B6-443D-B772-37A5901F3E83", "versionEndExcluding": "20.12.6.2", "versionStartIncluding": "20.12.6"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "32A83687-B363-476B-89EF-B35C82575237", "versionEndExcluding": "20.15.4.4", "versionStartIncluding": "20.13"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "709D0805-4B76-46A0-82D3-93C89926B389", "versionEndExcluding": "20.15.5.2", "versionStartIncluding": "20.15.5"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB6A9216-3D47-4B33-B502-72B99859992E", "versionEndExcluding": "20.18.2.2", "versionStartIncluding": "20.16"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C34C0AB2-3E8E-4B12-BEA2-446F8F248B9A", "versionEndExcluding": "26.1.1.1", "versionStartIncluding": "26.1"}, {"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A03BCEF-DC25-488D-91D3-0A16F3B872E3"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9862A7B-0BC5-435C-A0CB-07C2298941C1", "versionEndExcluding": "20.9.9.1"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C7B3B37-A914-4CFA-BD8E-665797F6BCDD", "versionEndExcluding": "20.12.5.4", "versionStartIncluding": "20.10"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB807AF9-6D8F-4C3F-8E78-204E6746AC81", "versionEndExcluding": "20.12.6.2", "versionStartIncluding": "20.12.6"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "006F885A-8F1F-4BD6-866D-44E3CE6ACA04", "versionEndExcluding": "20.15.4.4", "versionStartIncluding": "20.13"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A37A9327-F362-4B23-AE6C-9EB1BACAF523", "versionEndExcluding": "20.15.5.2", "versionStartIncluding": "20.15.5"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D99C7C7-3071-4F7E-ADC4-7201A1A6A66F", "versionEndExcluding": "20.18.2.2", "versionStartIncluding": "20.16"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45F124D5-073B-492F-987F-9726B7D0DFFE", "versionEndExcluding": "26.1.1.1", "versionStartIncluding": "26.1"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:20.12.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8FF1B18-9D34-4B77-8AD4-84BF5FE3C8BF"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0824EC8B-3153-4298-8570-C115A95FCCF1", "versionEndExcluding": "20.9.9.1"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "86D90EAF-0EB3-4412-8D15-14F5151E36FA", "versionEndExcluding": "20.12.5.4", "versionStartIncluding": "20.10"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAA36394-30A2-4668-AF03-1C596D8AC2E0", "versionEndExcluding": "20.12.6.2", "versionStartIncluding": "20.12.6"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EEC9B48C-3149-4662-9DD4-DC4ACE4460E3", "versionEndExcluding": "20.15.4.4", "versionStartIncluding": "20.13"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E964DF6-E2FB-4305-9AD6-42904FC4FE9A", "versionEndExcluding": "20.15.5.2", "versionStartIncluding": "20.15.5"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4D40D018-E4EB-4CC8-A2B0-F8E1DA2E3350", "versionEndExcluding": "20.18.2.2", "versionStartIncluding": "20.16"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "788140A2-0378-487E-9C9A-84080C9BC7A5", "versionEndExcluding": "26.1.1.1", "versionStartIncluding": "26.1"}, {"criteria": "cpe:2.3:a:cisco:sd-wan_vsmart_controller:20.12.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F4FFF4B-5C26-4014-A9B2-EE342F3FE3C8"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@cisco.com", "cisaRequiredAction": "Please adhere to CISA\u2019s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlined in CISA\u2019s Emergency Directive 26-03 (URL listed below in Notes) and CISA\u2019s Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.", "cisaVulnerabilityName": "Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability"}