{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-16T01:08:21.078","vulnerabilities":[{"cve":{"id":"CVE-2026-20127","sourceIdentifier":"psirt@cisco.com","published":"2026-02-25T17:25:29.477","lastModified":"2026-02-26T16:20:02.187","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, and Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.\r\n\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 an 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":"Una vulnerabilidad en la autenticación de emparejamiento en Cisco Catalyst SD-WAN Controller, anteriormente SD-WAN vSmart, y Cisco Catalyst SD-WAN Manager, anteriormente SD-WAN vManage, podría permitir a un atacante remoto no autenticado eludir la autenticación y obtener privilegios administrativos en un sistema afectado.\n\nEsta vulnerabilidad existe porque el mecanismo de autenticación de emparejamiento en un sistema afectado no funciona correctamente. Un atacante podría explotar esta vulnerabilidad enviando solicitudes manipuladas a un sistema afectado. Un exploit exitoso podría permitir al atacante iniciar sesión 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 podría acceder a NETCONF, lo que luego permitiría al atacante manipular la configuración de red para la estructura SD-WAN."}],"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:H/I:H/A:H","baseScore":10.0,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":6.0},{"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:H/I:H/A:H","baseScore":10.0,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":6.0}]},"cisaExploitAdd":"2026-02-25","cisaActionDue":"2026-02-27","cisaRequiredAction":"Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “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 and Manager Authentication Bypass Vulnerability","weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-287"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-287"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*","versionEndExcluding":"20.9.8.2","matchCriteriaId":"0388BD67-C1AD-4E47-8B1A-22EE1634190E"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"20.11","versionEndExcluding":"20.12.5.3","matchCriteriaId":"344CA479-F60F-4CD6-83F7-4DB38DF2EAEB"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"20.13","versionEndExcluding":"20.15.4.2","matchCriteriaId":"D284EA84-6C27-4A9C-BDA2-D1C5BF1F2356"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"20.16","versionEndExcluding":"20.18.2.1","matchCriteriaId":"B94E1DC2-5DA5-4238-8040-6D524DDEAA4F"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*","matchCriteriaId":"F5B6E170-73B8-4838-93B4-AD258F3BCA7C"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*","versionEndExcluding":"20.9.8.2","matchCriteriaId":"9C42E29A-D80E-4303-A33E-660099CF78F7"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*","versionStartIncluding":"20.11","versionEndExcluding":"20.12.5.3","matchCriteriaId":"7B720BE5-BD1D-4BFA-A899-BFB20C7499FC"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*","versionStartIncluding":"20.13","versionEndExcluding":"20.15.4.2","matchCriteriaId":"4BDF8CF0-99BA-461F-99D6-4B1ABE9C2FFF"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*","versionStartIncluding":"20.16","versionEndExcluding":"20.18.2.1","matchCriteriaId":"E709AAB8-3567-49EB-8090-033468743AB4"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:sd-wan_vsmart_controller:20.12.6:*:*:*:*:*:*:*","matchCriteriaId":"3DD7A58E-C95F-48C2-8359-39AFE7FA47BE"}]}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20127","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}]}}]}