{
  "cveId": "CVE-2026-99114",
  "url": "https://patchblox.com/security/cve/CVE-2026-99114",
  "summary": "CVE-2026-99114 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-99114, released November 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ksmbd: initialize FileSystemControlFlags in FS_CONTROL_INFORMATION",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ksmbd: initialize FileSystemControlFlags in FS_CONTROL_INFORMATION  smb2_get_info_filesystem() reports 48 bytes for FS_CONTROL_INFORMATION, that is the whole of struct smb2_fs_control_info, but never assigns FileSystemControlFlags.  Those four bytes go to the client as they are found in the response buffer.  The buffer is zeroed on allocation, so a standalone request leaks nothing.  A compound request can leak: the offset of the next response is advanced by the length pinned for the previous one, so a reply that was written into the buffer and then dropped in favour of the short error response of smb2_set_err_rsp() stays there, and the next reply is laid over it with only the header cleared.  ksmbd does not implement quota tracking, so report no control flags.",
  "published": "2026-10-28T11:17:30Z",
  "severity": "Low",
  "cvss": 3.1,
  "epss": 0.00173,
  "epssPercentile": 0.06791,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-99114",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-99114",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99114",
      "released": "2026-11-03T18:58:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.13-1",
      "fix": "DEBIAN-CVE-2026-99114",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99114",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "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"
  }
}