{
  "cveId": "CVE-2026-53010",
  "url": "https://patchblox.com/security/cve/CVE-2026-53010",
  "summary": "CVE-2026-53010 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-53010, released June 25, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "ksmbd: fix use-after-free in smb2_open during durable reconnect",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix use-after-free in smb2_open during durable reconnect  In smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference to the durable file descriptor early during the durable reconnect process. If an error occurs subsequently (eg, ksmbd_iov_pin_rsp fails) or a scavenger accesses the file, it leads to a use-after-free when accessing fp properties (eg fp-\u003Ecreate_time).  Move the single put to the end of the function below err_out2 so fp stays valid until smb2_open returns.",
  "published": "2026-06-24T17:17:12Z",
  "severity": "Critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00444,
  "epssPercentile": 0.38869,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53010",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.111-1",
      "fix": "DEBIAN-CVE-2026-53010",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53010",
      "released": "2026-06-25T17:23:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.10-1",
      "fix": "DEBIAN-CVE-2026-53010",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53010",
      "released": "2026-06-25T17:23:13Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.111-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-53010",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53010",
      "released": "2026-06-25T17:23:13Z"
    }
  ],
  "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"
  }
}