{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "5.8.2"
              },
              {
                "fixed": "5.8.4"
              }
            ]
          },
          "events": [
            {
              "introduced": "decea12e223869c8f8f3ab5a53dc90b69f436eb2"
            },
            {
              "fixed": "59f4fa568615396fbf381b073b220d1e8d61e4c2"
            }
          ],
          "repo": "https://github.com/wolfssl/wolfssl",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Improper Input Validation in the TLS 1.3 CKS extension parsing in wolfSSL 5.8.2 and earlier on multiple platforms allows a remote unauthenticated attacker to potentially cause a denial-of-service via a crafted ClientHello message with duplicate CKS extensions.",
  "id": "CVE-2025-11933",
  "modified": "2026-03-10T21:53:44.405036666Z",
  "published": "2025-11-21T23:15:44.293Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/wolfSSL/wolfssl/pull/9132"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wolfSSL/wolfssl"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}