{"api_version":"1","generated_at":"2026-04-23T08:04:08+00:00","cve":"CVE-2019-5456","urls":{"html":"https://cve.report/CVE-2019-5456","api":"https://cve.report/api/cve/CVE-2019-5456.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-5456","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-5456"},"summary":{"title":"CVE-2019-5456","description":"SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later.","state":"PUBLIC","assigner":"support@hackerone.com","published_at":"2019-07-30 21:15:00","updated_at":"2022-12-06 20:51:00"},"problem_types":["CWE-255"],"metrics":[],"references":[{"url":"https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c","name":"https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c","refsource":"CONFIRM","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391","name":"https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://hackerone.com/reports/519582","name":"https://hackerone.com/reports/519582","refsource":"MISC","tags":["Permissions Required"],"title":"HackerOne","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124","name":"https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124","refsource":"CONFIRM","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-5456","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-5456","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"5456","vulnerable":"1","versionEndIncluding":"5.10.21","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ui","cpe5":"unifi_controller","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2019-5456","ASSIGNER":"support@hackerone.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"UniFi","product":{"product_data":[{"product_name":"UniFi","version":{"version_data":[{"version_value":"<= 5.10.21"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Man-in-the-Middle (CWE-300)"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://hackerone.com/reports/519582","url":"https://hackerone.com/reports/519582"},{"refsource":"CONFIRM","name":"https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391","url":"https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391"},{"refsource":"CONFIRM","name":"https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c","url":"https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c"},{"refsource":"CONFIRM","name":"https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124","url":"https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124"}]},"description":{"description_data":[{"lang":"eng","value":"SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later."}]}},"nvd":{"publishedDate":"2019-07-30 21:15:00","lastModifiedDate":"2022-12-06 20:51:00","problem_types":["CWE-255"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ui:unifi_controller:*:*:*:*:*:*:*:*","versionEndIncluding":"5.10.21","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"5456","Ordinal":"143076","Title":"CVE-2019-5456","CVE":"CVE-2019-5456","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"5456","Ordinal":"1","NoteData":"SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"5456","Ordinal":"2","NoteData":"2019-07-30","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"5456","Ordinal":"3","NoteData":"2019-07-30","Type":"Other","Title":"Modified"}]}}}