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CVE-2026-45923

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: catc: enable basic endpoint checking catc_probe() fills three URBs with hardcoded endpoint pipes without verifying the endpoint descriptors: - usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX - usb_rcvintpipe(usbdev, 2) for interrupt status A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes. Add a catc_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls after usb_set_interface() to verify endpoint types before use, rejecting devices with mismatched descriptors at probe time. Similar to - commit 90b7f2961798 ("net: usb: rtl8150: enable basic endpoint checking") which fixed the issue in rtl8150.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Undergoing Analysis
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-27 14:17:07.283000
Last modified
2026-11-06 16:18:52.760000
View original CVE JSON 
{
  "id": "CVE-2026-45923",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-27T14:17:07.283",
  "lastModified": "2026-11-06T16:18:52.760",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: catc: enable basic endpoint checking\n\ncatc_probe() fills three URBs with hardcoded endpoint pipes without\nverifying the endpoint descriptors:\n\n  - usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX\n  - usb_rcvintpipe(usbdev, 2) for interrupt status\n\nA malformed USB device can present these endpoints with transfer types\nthat differ from what the driver assumes.\n\nAdd a catc_usb_ep enum for endpoint numbers, replacing magic constants\nthroughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints()\ncalls after usb_set_interface() to verify endpoint types before use,\nrejecting devices with mismatched descriptors at probe time.\n\nSimilar to\n- commit 90b7f2961798 (\"net: usb: rtl8150: enable basic endpoint checking\")\nwhich fixed the issue in rtl8150."
    }
  ],
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          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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    "ssvcV203": [
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          "role": "CISA Coordinator",
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  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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