{
  "cveId": "CVE-2025-55163",
  "url": "https://patchblox.com/security/cve/CVE-2025-55163",
  "summary": "CVE-2025-55163 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2025-55163, released August 13, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libnetty-java: Netty is an asynchronous, event-driven network application framework",
  "description": "Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.",
  "published": "2025-08-13T08:15:00Z",
  "severity": "Medium",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.01125,
  "epssPercentile": 0.66508,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.7-4ubuntu0.1\u002Besm7",
      "fix": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnetty-java-1-4.1.7-4ubuntu0.1-esm7",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:4.1.45-1ubuntu0.1~esm7",
      "fix": "libnetty-java 1:4.1.45-1ubuntu0.1~esm7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnetty-java-1-4.1.45-1ubuntu0.1-esm7",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:4.1.48-4\u002Bdeb11u2ubuntu0.2\u002Besm1",
      "fix": "libnetty-java 1:4.1.48-4\u002Bdeb11u2ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libnetty-java-1-4.1.48-4-deb11u2ubuntu0.2-esm1",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:4.1.48-9ubuntu0.2\u002Besm1",
      "fix": "libnetty-java 1:4.1.48-9ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libnetty-java-1-4.1.48-9ubuntu0.2-esm1",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:4.1.48-7\u002Bdeb12u2",
      "fix": "DSA-6160-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-6160-1",
      "released": "2026-03-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:4.1.48-10\u002Bdeb13u1",
      "fix": "DSA-6160-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-6160-1",
      "released": "2026-03-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 14",
      "fixedVersion": "1:4.1.48-11",
      "fix": "DEBIAN-CVE-2025-55163",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-55163",
      "released": "2025-08-13T15:15:39Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "4.1.126-150200.4.34.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "sles 15.6",
      "fixedVersion": "4.1.126-150200.4.34.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "sles 15.7",
      "fixedVersion": "4.1.126-150200.4.34.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    },
    {
      "platform": "linux",
      "product": "netty-tcnative",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "2.0.73-150200.3.30.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    },
    {
      "platform": "linux",
      "product": "netty-tcnative",
      "release": "sles 15.6",
      "fixedVersion": "2.0.73-150200.3.30.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    },
    {
      "platform": "linux",
      "product": "netty-tcnative",
      "release": "sles 15.7",
      "fixedVersion": "2.0.73-150200.3.30.1",
      "fix": "SUSE-SU-2025:03114-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03114-1",
      "released": "2025-09-09T10:35:14Z"
    }
  ],
  "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"
  }
}