{
  "cveId": "CVE-2023-54139",
  "url": "https://patchblox.com/security/cve/CVE-2023-54139",
  "summary": "CVE-2023-54139 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-54139, released December 24, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  tracing/user_events: Ensure write index cannot b...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tracing/user_events: Ensure write index cannot be negative  The write index indicates which event the data is for and accesses a per-file array. The index is passed by user processes during write() calls as the first 4 bytes. Ensure that it cannot be negative by returning -EINVAL to prevent out of bounds accesses.  Update ftrace self-test to ensure this occurs properly.",
  "published": "2025-12-24T13:16:15Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00154,
  "epssPercentile": 0.04554,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-54139",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54139",
      "released": "2025-12-24T13:16:15Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54139",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54139",
      "released": "2025-12-24T13:16:15Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54139",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54139",
      "released": "2025-12-24T13:16:15Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}