{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "6.5.1.202602"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1a0e9e43a03e37ddecfb6b49e9b078d6e1803d05"
            }
          ],
          "repo": "https://github.com/eclipse-threadx/netxduo",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-4m85-f9qh-q3jv"
  ],
  "database_specific": {
    "cna_assigner": "eclipse",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92843.json"
  },
  "details": "A missing bounds check in the TLS 1.3 Certificate-message parser of NetX Secure lets a malicious TLS 1.3 server trigger an unsigned-integer underflow and a subsequent heap out-of-bounds read in any peer that processes a remote Certificate message. It is reachable pre-authentication, during the normal handshake, before certificate verification completes.",
  "id": "CVE-2026-92843",
  "modified": "2026-10-21T02:30:22.774072862Z",
  "published": "2026-10-20T15:12:55.919Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92843.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-4m85-f9qh-q3jv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92843"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure"
}