CVE-2026-53420

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53420", "assignerOrgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "state": "PUBLISHED", "assignerShortName": "Zoom", "dateReserved": "2026-06-09T10:18:05.661Z", "datePublished": "2026-10-13T14:22:00.033Z", "dateUpdated": "2026-10-14T03:59:02.674Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "shortName": "Zoom", "dateUpdated": "2026-10-13T14:22:00.033Z"}, "datePublic": "2026-10-13T12:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-120", "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "type": "CWE"}]}], "affected": [{"vendor": "Zoom Communications", "product": "Zoom Workplace", "platforms": ["Android", "Windows", "MacOS", "iOS"], "versions": [{"status": "affected", "version": "0", "lessThan": "7.2.0", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "base64": false, "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>"}]}], "references": [{"url": "https://www.zoom.com/en/trust/security-bulletin/zsb-26020"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-13T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-53420"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T03:59:02.674Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53420", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-13T14:39:05.744807Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-13T15:40:49.487Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Zoom Communications", "product": "Zoom Workplace", "versions": [{"status": "affected", "version": "0", "lessThan": "7.2.0", "versionType": "custom"}], "platforms": ["Android", "Windows", "MacOS", "iOS"], "defaultStatus": "unaffected"}], "datePublic": "2026-10-13T12:00:00.000Z", "references": [{"url": "https://www.zoom.com/en/trust/security-bulletin/zsb-26020"}], "x_generator": {"engine": "Vulnogram 1.0.0"}, "descriptions": [{"lang": "en", "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.", "supportingMedia": [{"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>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "providerMetadata": {"orgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "shortName": "Zoom", "dateUpdated": "2026-10-13T14:22:00.033Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53420", "state": "PUBLISHED", "dateUpdated": "2026-10-14T03:59:02.674Z", "dateReserved": "2026-06-09T10:18:05.661Z", "assignerOrgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "datePublished": "2026-10-13T14:22:00.033Z", "assignerShortName": "Zoom"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Android", "Windows", "MacOS", "iOS"], "product": "Zoom Workplace", "vendor": "Zoom Communications", "versions": [{"lessThan": "7.2.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "security@zoom.us"}], "cveTags": [], "descriptions": [{"lang": "en", "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."}], "id": "CVE-2026-53420", "lastModified": "2026-10-14T04:18:23.290", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "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"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "security@zoom.us", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53420", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-13T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-10-13T15:17:44.753", "references": [{"source": "security@zoom.us", "url": "https://www.zoom.com/en/trust/security-bulletin/zsb-26020"}], "sourceIdentifier": "security@zoom.us", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "security@zoom.us", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["android", "windows", "macos", "ios"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,7.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Zoom Workplace", "source": "cna", "vendor": "Zoom Communications"}, "product": "zoom_workplace", "vendor": "zoom_communications"}], "created": "2026-10-13T17:45:16.600317+00:00", "updated": "2026-10-13T17:45:17.073581+00:00", "vendors": ["zoom_communications", "zoom_communications$PRODUCT$zoom_workplace"]}