{
  "cveId": "CVE-2025-11678",
  "url": "https://patchblox.com/security/cve/CVE-2025-11678",
  "summary": "CVE-2025-11678 is fixed in 8 products on 1 platform, first by libwebsockets-evlib-ev 4.3.3-1.1ubuntu0.1~esm1, released October 20, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libwebsockets-evlib-ev: Stack-based Buffer Overflow\u00A0in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS...",
  "description": "Stack-based Buffer Overflow\u00A0in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.",
  "published": "2025-10-20T07:15:00Z",
  "severity": "Medium",
  "epss": 0.00285,
  "epssPercentile": 0.21195,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libwebsockets",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.3.5-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2025-11678",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-11678",
      "released": "2025-10-20T14:15:40Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets",
      "release": "Debian 14",
      "fixedVersion": "4.3.5-3",
      "fix": "DEBIAN-CVE-2025-11678",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-11678",
      "released": "2025-10-20T14:15:40Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-evlib-ev",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets-evlib-ev 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets-evlib-ev-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-evlib-glib",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets-evlib-glib 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets-evlib-glib-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-evlib-uv",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets-evlib-uv 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets-evlib-uv-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-test-server",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.0.20-2ubuntu1.1",
      "fix": "libwebsockets-test-server 4.0.20-2ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libwebsockets-test-server-4.0.20-2ubuntu1.1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-test-server",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets-test-server 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets-test-server-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-test-server-common",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.0.20-2ubuntu1.1",
      "fix": "libwebsockets-test-server-common 4.0.20-2ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libwebsockets-test-server-common-4.0.20-2ubuntu1.1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets-test-server-common",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets-test-server-common 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets-test-server-common-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets16",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.0.20-2ubuntu1.1",
      "fix": "libwebsockets16 4.0.20-2ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libwebsockets16-4.0.20-2ubuntu1.1",
      "released": "2025-10-20T07:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebsockets19t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "4.3.3-1.1ubuntu0.1~esm1",
      "fix": "libwebsockets19t64 4.3.3-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwebsockets19t64-4.3.3-1.1ubuntu0.1-esm1",
      "released": "2025-10-20T07:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}