Table fails if `cve` is missing

[tschmidtb51]

The table is empty if the cve field is missing:

Example:

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "publisher": {
      "category": "vendor",
      "name": "Example Company 01 ProductCERT",
      "namespace": "https://psirt.example01.test"
    },
    "title": "Example Security Advisory 001",
    "tracking": {
      "current_release_date": "2021-02-01T12:00:00.000Z",
      "generator": {
        "date": "2023-01-26T11:55:55.932Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.0.0"
        }
      },
      "id": "2021-ESA-001",
      "initial_release_date": "2021-01-01T11:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-01-01T11:00:00.000Z",
          "number": "1",
          "summary": "Initial version."
        },
        {
          "date": "2021-02-01T11:00:00.000Z",
          "number": "2",
          "summary": "Patch added for product ABC."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "patch_level",
                    "name": "0",
                    "product": {
                      "name": "Example Company 01 ABC 4.2.0",
                      "product_id": "CSAFPID-0001"
                    }
                  },
                  {
                    "category": "patch_level",
                    "name": "1",
                    "product": {
                      "name": "Example Company 01 ABC 4.2.1",
                      "product_id": "CSAFPID-0002"
                    }
                  }
                ],
                "category": "product_version",
                "name": "4.2"
              }
            ],
            "category": "product_name",
            "name": "ABC"
          }
        ],
        "category": "vendor",
        "name": "Example Company 01"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cwe": {
        "id": "CWE-321",
        "name": "Use of Hard-coded Cryptographic Key"
      },
      "notes": [
        {
          "category": "summary",
          "text": "An attacker with local network access can obtain a fixed cryptography key which may allow for further compromise of ABC outside of local network access."
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-0002"
        ],
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to the latest firmware.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    }
  ]
}
``