Security advisory

{
  "id": "6a14162b13471dcd4c8aca5f42cdcb74aa8c1cadf584bd893cc44bd66c95dd1d",
  "url": "https://osv.dev/vulnerability/CVE-2023-46849",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-46849",
    "summary": "Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.",
    "evidence": "osv:CVE-2023-46849",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-46849",
      "aliases": [
        "CVE-2023-46849"
      ],
      "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/openvpn/openvpn",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b999466418dddb89721be5455f03bacd9b221b1d"
                },
                {
                  "last_affected": "c9540130121bfc21902a54c8e4c9bc1108695068"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "2.6.0"
                      },
                      {
                        "last_affected": "2.6.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.6.6",
            "v2.6.5",
            "v2.6.4",
            "v2.6.3",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-46849.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.015718860Z",
      "provider": "osv",
      "references": [
        "https://community.openvpn.net/openvpn/wiki/CVE-2023-46849",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46849.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-46849",
        "https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/",
        "https://www.debian.org/security/2023/dsa-5555"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-369"
        ],
        "cna_assigner": "OpenVPN",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.6.0"
                  },
                  {
                    "last_affected": "2.6.6"
                  },
                  {
                    "introduced": "2.11.0"
                  },
                  {
                    "last_affected": "2.11.3"
                  },
                  {
                    "introduced": "2.12.0"
                  },
                  {
                    "last_affected": "2.12.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46849.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-46849",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498195,
  "published_at": "2023-11-11T00:05:13.487+00:00"
}