{
  "cveId": "CVE-2026-63874",
  "url": "https://patchblox.com/security/cve/CVE-2026-63874",
  "summary": "CVE-2026-63874 is fixed in linux on 1 platform by DEBIAN-CVE-2026-63874 (version 7.0.13-1), released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: mctp: usb: fix race between urb completion...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: mctp: usb: fix race between urb completion and rx_retry cancellation  It\u0027s possible that sequencing between setting -\u003Estopped and cancelling the rx_retry work (in ndo_stop) could leave us with an urb queued:      T1: ndo_stop                  T2: rx_retry_work     ------------                  ----------------                                   LD: -\u003Estopped =\u003E false     ST: -\u003Estopped \u003C= true     usb_kill_urb()                                   mctp_usb_rx_queue()                                     usb_submit_urb()     cancel_delayed_work_sync()  That urb completion can then re-schedule rx_retry_work.  Strenghen the sequencing between the stop (preventing another requeue) and the cancel by updating both atomically under a new rx lock. After setting -\u003Erx_stopped, and cancelling pending work, we know that the requeue cannot occur, so all that\u0027s left is killing any pending urb.",
  "published": "2026-07-19T15:16:54Z",
  "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": 0.00134,
  "epssPercentile": 0.02921,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.13-1",
      "fix": "DEBIAN-CVE-2026-63874",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63874",
      "released": "2026-07-20T12:58:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}