{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5268", "assignerOrgId": "7bd90cf1-1651-495e-9ae8-9415fb3c9feb", "state": "PUBLISHED", "assignerShortName": "Ciena", "dateReserved": "2026-03-31T19:44:32.296Z", "datePublished": "2026-07-06T15:25:56.938Z", "dateUpdated": "2026-07-06T15:25:56.938Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7bd90cf1-1651-495e-9ae8-9415fb3c9feb", "shortName": "Ciena", "dateUpdated": "2026-07-06T15:25:56.938Z"}, "title": "SFTP Server Authentication Weakness", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-288", "description": "CWE-288 Authentication bypass using an alternate path or channel", "type": "CWE"}]}], "affected": [{"vendor": "CIENA", "product": "6500 S-Series", "versions": [{"status": "affected", "version": "R16.96 and prior"}], "defaultStatus": "affected"}, {"vendor": "CIENA", "product": "6500 T-Series", "versions": [{"status": "affected", "version": "R16.1 and prior"}], "defaultStatus": "affected"}, {"vendor": "CIENA", "product": "PTS", "versions": [{"status": "affected", "version": "R16.1 and prior"}], "defaultStatus": "affected"}, {"vendor": "CIENA", "product": "CPL", "versions": [{"status": "affected", "version": "R12.63 and prior"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "An authentication bypass vulnerability exists in\nthe default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass\nsecurity controls and gain unauthorized access to the underlying filesystem.\nSuccessful exploitation could allow an attacker to read or modify system files.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>An authentication bypass vulnerability exists in\nthe default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass\nsecurity controls and gain unauthorized access to the underlying filesystem.\nSuccessful exploitation could allow an attacker to read or modify system files.</p>"}]}], "references": [{"url": "https://www.ciena.com/product-security", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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