Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds

{
  "id": "a3883e7ee4077b9fc3b6761cdbcf3f8378fda32d9f9e420739bf86b622776038",
  "url": "https://osv.dev/vulnerability/CVE-2023-39948",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds",
    "summary": "eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0 and 2.6.5, the `BadParamException` thrown by Fast CDR is not caught in Fast DDS. This can remotely crash any Fast DDS process. Versions 2.10.0 and 2.6.5 contain a patch for this issue.",
    "evidence": "osv:CVE-2023-39948",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-39948",
      "aliases": [
        "CVE-2023-39948",
        "GHSA-x9pj-vrgf-f68f"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eprosima/fast-dds",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7124ff87c4813bed26858fd89d3b915a5857dbc7"
                },
                {
                  "fixed": "8f2a8828dcffab1e78f14023cdae7a8efe4e4a5b"
                },
                {
                  "introduced": "191ce8d763145865fe6ce270688cfbb5125e9364"
                },
                {
                  "last_affected": "191ce8d763145865fe6ce270688cfbb5125e9364"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.6.0"
                      },
                      {
                        "fixed": "2.6.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:eprosima:fast_dds:2.10.0:rc1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.10.0-rc1"
                      },
                      {
                        "last_affected": "2.10.0-rc1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.10.0-rc1",
            "v2.10.0-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-39948.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.018374412Z",
      "provider": "osv",
      "references": [
        "https://github.com/eProsima/Fast-DDS/files/11117197/fastdds-assert.pcap.zip",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39948.json",
        "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-x9pj-vrgf-f68f",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-39948",
        "https://www.debian.org/security/2023/dsa-5481",
        "https://github.com/eProsima/Fast-DDS/issues/3422"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-248"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39948.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-39948",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497964,
  "published_at": "2023-08-11T13:51:38.871+00:00"
}