{"api_version":"1","generated_at":"2026-10-18T02:48:23+00:00","cve":"CVE-2026-53420","urls":{"html":"https://cve.report/CVE-2026-53420","api":"https://cve.report/api/cve/CVE-2026-53420.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53420","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53420"},"summary":{"title":"CVE-2026-53420","description":"Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.","state":"PUBLISHED","assigner":"Zoom","published_at":"2026-10-13 15:17:44","updated_at":"2026-10-14 04:18:23"},"problem_types":["CWE-120","CWE-120 CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"],"metrics":[{"version":"3.1","source":"security@zoom.us","type":"Secondary","score":"8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","baseScore":8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://www.zoom.com/en/trust/security-bulletin/zsb-26020","name":"https://www.zoom.com/en/trust/security-bulletin/zsb-26020","refsource":"security@zoom.us","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53420","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53420","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Zoom Communications","product":"Zoom Workplace","version":"affected 7.2.0 custom","platforms":["Android","Windows","MacOS","iOS"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-53420","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-13T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-14T03:59:02.674Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Android","Windows","MacOS","iOS"],"product":"Zoom Workplace","vendor":"Zoom Communications","versions":[{"lessThan":"7.2.0","status":"affected","version":"0","versionType":"custom"}]}],"datePublic":"2026-10-13T12:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.</p>"}],"value":"Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","description":"CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-13T14:22:00.033Z","orgId":"99b9af0d-a833-4a5d-9e2f-8b1324f35351","shortName":"Zoom"},"references":[{"url":"https://www.zoom.com/en/trust/security-bulletin/zsb-26020"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.0"}}},"cveMetadata":{"assignerOrgId":"99b9af0d-a833-4a5d-9e2f-8b1324f35351","assignerShortName":"Zoom","cveId":"CVE-2026-53420","datePublished":"2026-10-13T14:22:00.033Z","dateReserved":"2026-06-09T10:18:05.661Z","dateUpdated":"2026-10-14T03:59:02.674Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-13 15:17:44","lastModifiedDate":"2026-10-14 04:18:23","problem_types":["CWE-120","CWE-120 CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"],"metrics":{"cvssMetricV31":[{"source":"security@zoom.us","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","baseScore":8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.3,"impactScore":6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-13T00:00:00+00:00","id":"CVE-2026-53420","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53420","Ordinal":"1","Title":"CVE-2026-53420","CVE":"CVE-2026-53420","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53420","Ordinal":"1","NoteData":"Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.","Type":"Description","Title":"CVE-2026-53420"}]}}}