{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.8.0"
              },
              {
                "last_affected": "2.8.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "ee04d293c73899d89b51e4191ee4e965560e3fb9"
            },
            {
              "last_affected": "ee04d293c73899d89b51e4191ee4e965560e3fb9"
            }
          ],
          "repo": "https://github.com/openvpn/ovpn-dco-win",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.8.0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "OpenVPN",
    "cwe_ids": [
      "CWE-131"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2738.json"
  },
  "details": "Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag appears at the end of the encrypted packet",
  "id": "CVE-2026-2738",
  "modified": "2026-07-08T05:39:04.388404956Z",
  "published": "2026-02-19T20:00:30.951Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenVPN/ovpn-dco-win/"
    },
    {
      "type": "ADVISORY",
      "url": "https://community.openvpn.net/Security%20Announcements/CVE-2026-2738"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2738.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2738"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P",
      "type": "CVSS_V4"
    }
  ]
}