{
  "cveId": "CVE-2021-37592",
  "url": "https://patchblox.com/security/cve/CVE-2021-37592",
  "summary": "CVE-2021-37592 is fixed in suricata on 1 platform, first by DEBIAN-CVE-2021-37592, released November 19, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "suricata: Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a clientwith a crafted TCP/IP stack that can send a...",
  "description": "Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a clientwith a crafted TCP/IP stack that can send a certain sequence of segments.",
  "published": "2021-11-19T15:15:08Z",
  "severity": "Medium",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.01603,
  "epssPercentile": 0.75987,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "suricata",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:6.0.4-1",
      "fix": "DEBIAN-CVE-2021-37592",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-37592",
      "released": "2021-11-19T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "suricata",
      "release": "Debian 14",
      "fixedVersion": "1:6.0.4-1",
      "fix": "DEBIAN-CVE-2021-37592",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-37592",
      "released": "2021-11-19T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "suricata",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "1:6.0.4-1",
      "fix": "suricata 1:6.0.4-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-suricata-1-6.0.4-1",
      "released": "2026-01-16T01:42:22Z"
    },
    {
      "platform": "linux",
      "product": "suricata",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "1:6.0.4-1",
      "fix": "suricata 1:6.0.4-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-suricata-1-6.0.4-1",
      "released": "2026-01-16T01:42:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}