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              "attackVector": "NETWORK",
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              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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              "content": {
                "id": "CVE-2026-5268",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
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          "dateUpdated": "2026-07-06T18:42:39.325Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "product": "6500 S-Series",
          "vendor": "CIENA",
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          "product": "6500 T-Series",
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          "product": "PTS",
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              "version": "R16.1 and prior"
            }
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        {
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          "product": "CPL",
          "vendor": "CIENA",
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              "status": "affected",
              "version": "R12.63 and prior"
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              "value": "\u003cp\u003eAn 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.\u003c/p\u003e"
            }
          ],
          "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-288",
              "description": "CWE-288 Authentication bypass using an alternate path or channel",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2026-07-08T20:18:06.557Z",
        "orgId": "7bd90cf1-1651-495e-9ae8-9415fb3c9feb",
        "shortName": "Ciena"
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          "tags": [
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          "url": "https://www.ciena.com/product-security"
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              "value": "\u003cp\u003eCiena recommends upgrading to the latest\navailable remediated release. For additional details, refer to myciena.com for\ncurrent software versions, fixes, and security advisories.\u003c/p\u003e"
            }
          ],
          "value": "Ciena recommends upgrading to the latest\navailable remediated release. For additional details, refer to myciena.com for\ncurrent software versions, fixes, and security advisories."
        }
      ],
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    "assignerShortName": "Ciena",
    "cveId": "CVE-2026-5268",
    "datePublished": "2026-07-06T15:25:56.938Z",
    "dateReserved": "2026-03-31T19:44:32.296Z",
    "dateUpdated": "2026-07-08T20:18:06.557Z",
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