{
  "cveId": "CVE-2026-8836",
  "url": "https://patchblox.com/security/cve/CVE-2026-8836",
  "summary": "CVE-2026-8836 is fixed in 3 products on 1 platform, first by liblwip0 2.1.2\u002Bdfsg1-4ubuntu0.1~esm1, released May 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "lwip: A vulnerability was found in lwIP up to 2.2.1",
  "description": "A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Performing a manipulation of the argument msgAuthenticationParameters results in stack-based buffer overflow. The attack may be initiated remotely. The patch is named 0c957ec03054eb6c8205e9c9d1d05d90ada3898c. It is suggested to install a patch to address this issue. Two separate issue reports were submitted to the project. Their processing was merged as a duplicate.",
  "published": "2026-05-18T12:16:00Z",
  "severity": "Medium",
  "epss": 0.01097,
  "epssPercentile": 0.65809,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "liblwip0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.1.2\u002Bdfsg1-4ubuntu0.1~esm1",
      "fix": "liblwip0 2.1.2\u002Bdfsg1-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-liblwip0-2.1.2-dfsg1-4ubuntu0.1-esm1",
      "released": "2026-05-18T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "liblwip0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.3\u002Bdfsg1-1ubuntu0.1~esm1",
      "fix": "liblwip0 2.1.3\u002Bdfsg1-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-liblwip0-2.1.3-dfsg1-1ubuntu0.1-esm1",
      "released": "2026-05-18T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "liblwip0t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.0\u002Bdfsg1-6.1ubuntu0.1~esm1",
      "fix": "liblwip0t64 2.2.0\u002Bdfsg1-6.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-liblwip0t64-2.2.0-dfsg1-6.1ubuntu0.1-esm1",
      "released": "2026-05-18T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "liblwip0t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.2.1\u002Bdfsg1-4ubuntu0.1~esm1",
      "fix": "liblwip0t64 2.2.1\u002Bdfsg1-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-liblwip0t64-2.2.1-dfsg1-4ubuntu0.1-esm1",
      "released": "2026-05-18T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "lwip",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.2.1\u002Bdfsg1-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-8836",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8836",
      "released": "2026-05-18T19:16:28Z"
    },
    {
      "platform": "linux",
      "product": "lwip",
      "release": "Debian 14",
      "fixedVersion": "2.2.1\u002Bdfsg1-5",
      "fix": "DEBIAN-CVE-2026-8836",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8836",
      "released": "2026-05-18T19:16:28Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}