{
  "cveId": "CVE-2026-63448",
  "url": "https://patchblox.com/security/cve/CVE-2026-63448",
  "summary": "CVE-2026-63448 is fixed in suricata on 1 platform by DEBIAN-CVE-2026-63448 (version 1:8.0.6-1), released September 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "suricata: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine",
  "description": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, the SMB parser can retain force-completed transactions on flows where Suricata sees payload in only one direction, including async-oneside flows, because cleanup waits for inspection in the unseen direction. The transaction creation paths in rust/src/smb can exceed the intended SMB_MAX_TX bound, and cleanup repeatedly scans the growing list. Sustained one-directional SMB traffic can therefore cause unbounded per-flow state and CPU and memory exhaustion. This issue is fixed in versions 8.0.6 and 7.0.17.",
  "published": "2026-09-18T21:17:04Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00447,
  "epssPercentile": 0.3913,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "suricata",
      "release": "Debian 14",
      "fixedVersion": "1:8.0.6-1",
      "fix": "DEBIAN-CVE-2026-63448",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63448",
      "released": "2026-09-19T18:30:58Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}