{
  "cveId": "CVE-2024-8946",
  "url": "https://patchblox.com/security/cve/CVE-2024-8946",
  "summary": "CVE-2024-8946 is fixed in micropython on 1 platform, first by micropython 1.12-1ubuntu0.1~esm1, released September 17, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "micropython: A vulnerability was found in MicroPython 1.23.0",
  "description": "A vulnerability was found in MicroPython 1.23.0. It has been classified ascritical. Affected is the function mp_vfs_umount of the file extmod/vfs.cof the component VFS Unmount Handler. The manipulation leads to heap-basedbuffer overflow. It is possible to launch the attack remotely. The exploithas been disclosed to the public and may be used. The name of the patch is29943546343c92334e8518695a11fc0e2ceea68b. It is recommended to apply apatch to fix this issue. In the VFS unmount process, the comparison betweenthe mounted path string and the unmount requested string is based solely onthe length of the unmount string, which can lead to a heap buffer overflowread.",
  "published": "2024-09-17T12:15:00Z",
  "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": 0.01006,
  "epssPercentile": 0.63224,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.24.0\u002Bds-1",
      "fix": "DEBIAN-CVE-2024-8946",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-8946",
      "released": "2024-09-17T19:15:29Z"
    },
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Debian 14",
      "fixedVersion": "1.24.0\u002Bds-1",
      "fix": "DEBIAN-CVE-2024-8946",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-8946",
      "released": "2024-09-17T19:15:29Z"
    },
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.12-1ubuntu0.1~esm1",
      "fix": "micropython 1.12-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-micropython-1.12-1ubuntu0.1-esm1",
      "released": "2024-09-17T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.17\u002Bds-1.1ubuntu2\u002Besm1",
      "fix": "micropython 1.17\u002Bds-1.1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-micropython-1.17-ds-1.1ubuntu2-esm1",
      "released": "2024-09-17T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.22.1\u002Bds-1ubuntu0.24.04.1~esm1",
      "fix": "micropython 1.22.1\u002Bds-1ubuntu0.24.04.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-micropython-1.22.1-ds-1ubuntu0.24.04.1-esm1",
      "released": "2024-09-17T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "micropython",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "1.22.1\u002Bds-1ubuntu0.24.10.1",
      "fix": "micropython 1.22.1\u002Bds-1ubuntu0.24.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-micropython-1.22.1-ds-1ubuntu0.24.10.1",
      "released": "2026-01-16T01:42:22Z"
    }
  ],
  "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"
  }
}